Functional medicine is considered a legitimate, evidence-based approach that complements, rather than replaces, conventional medicine by focusing on root causes of chronic disease through personalized care. It is increasingly adopted by institutions like the Cleveland Clinic, although it is best used for chronic, not acute, care.
Cleveland Clinic
Cleveland Clinic
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Key takeaways regarding legitimacy:
Root Cause Focus: Practitioners aim to identify the underlying causes of disease rather than just treating symptoms, often using comprehensive lab testing.
Scientific Backing: It is based on science, including genetics and body interconnectedness, supported by studies on chronic condition management.
Clinical Evidence: Research has shown improved patient-reported outcomes (e.g., in Cleveland Clinic studies) compared to traditional primary care.
Qualified Providers: Many, but not all, functional medicine practitioners are licensed physicians (MDs, DOs) who have obtained additional certification, such as from the Institute for Functional Medicine.
Complementary Approach: It is not a substitute for emergency medicine or acute care, but works best alongside it.
Cleveland Clinic
Cleveland Clinic
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While it is recognized by major health centers, some critics argue that it may occasionally lack rigorous, large-scale studies for all its methods, requiring patients to be cautious and ensure they work with qualified, licensed professionals.

Is Functional Medicine Legit? Your Ultimate Guide To How It Works
Functional medicine is growing in popularity, but many people wonder about its legitimacy and the credentials of its providers. Functional medicine is evidence-based and follows scientific processes while investigating root causes of symptoms and diseases and providing personalized, rather than generalized, approaches to treatment and prevention.

Although functional medicine has been around in some form since the 1800s, it’s been gaining popularity in recent years as patients have desired shifting the focus of their care from treatment of disease to prevention and treating root causes.

“Patients are increasingly seeking care that is personalized, preventive, and proactive,” says Deanna Minich, PhD, the chief science officer at Symphony Natural Health. “Many feel underserved by conventional approaches that focus on disease management rather than wellness optimization. Functional medicine resonates because it emphasizes the therapeutic partnership between clinician and patient, longer consultations, and deeper exploration of root causes.”

If this sounds good to you, you may be wondering, “Is functional medicine legit?” or “Is functional medicine a scam?” The short answers are yes and no, respectively. But to explore this, we need to compare conventional medicine and functional medicine.

Consider this example: I live with a few chronic conditions that I must manage, including mast cell activation syndrome (MCAS), a disorder in which some of my immune cells are overactive and erroneously cause allergic reactions. I require emergency care in the conventional medical system if I experience anaphylaxis, a severe and life-threatening allergic response. But most of the time I can engage in functional medicine care to help avoid MCAS flares and treat their root causes through lifestyle approaches.

Both treatment options are valid and legit. Functional medicine can get the side eye in society as a “woo-woo” approach, but functional medicine practitioners undergo extensive training and focus on evidence-based approaches; they are not “scamming” you when it comes to your health.

In this article we’ll explore what functional medicine is, the credentials of a functional doctor, and more, whether functional medicine is worth it, and more.

What is functional medicine
“Functional medicine is a personalized, systems-oriented approach that addresses the root causes of disease, rather than focusing solely on symptoms,” Dr. Minich says. “To me, it means looking at everyone’s unique genetics, environment, diet, and lifestyle patterns to understand how they interact and contribute to health or disease.”



The Institute of Functional Medicine (IFM), where Dr. Minich is an educator, has a certification program for functional medicine practitioners. It’s a good resource to explore the approach of functional medicine and what it is at its core.

Founded in 1991 by Susan and Jeffrey Bland, PhD, the IFM gives this concise definition: “Functional medicine provides a framework to systematically identify and address the underlying processes and dysfunctions that are causing imbalance and disease in each individual. By understanding a patient’s genetic, environmental, and lifestyle influences, functional medicine clinicians create personalized interventions that restore balance, health, and well-being.”

The term “functional” is, of course, the core of functional medicine, and the concept dates back to the 1800s. “Every symptom arises from the imperfect discharge of function,” wrote Dr. Willoughby Wade in an 1871 article in the medical journal Lancet.

Essentially, when a symptom arises, it originates from a source of dysfunction that, if not addressed, may later turn into a disease state if it hasn’t already. The goal of functional medicine is to target the source of dysfunction and restore function where possible.

“Functional medicine to me means truly addressing the why behind someone’s symptoms (aka getting to the root cause) rather than silencing the pain,” says Natalie Samson, MS, CGC, INHC, a board-certified genetic counselor at Golden Genetics. It’s not about Band-Aid fixes or masking symptoms with prescriptions. It’s about understanding the complex web of how everything in the body is connected, then giving someone a path to actual healing.”

Functional medicine follows seven core tenets:

Genetics and epigenetics matter. Based on our genetics, we may have some predisposition for certain diseases, but environmental and lifestyle factors can change how our genes are expressed.
Our organs interact. Although a condition may largely affect a specific organ, our organs are part of larger systems, so treatment involves a whole-body approach rather than a siloed approach.
Environmental and lifestyle factors play a role. Environmental and lifestyle factors can trigger diseases if they harm health and prevent or even reverse diseases if they are healthy.
Patients have personalized triggers and mediators. The factors that trigger or resolve symptoms in one person may not be the same for the next.
Multimodal treatments are necessary. A condition or symptom may require several different treatments, rather than just one.
A patient is an individual. Because of individualized factors that contribute to symptoms or disease, a personalized approach to care is necessary.
A long-term relationship has benefits. The personalization process warrants more one-on-one time between patient and clinician.

How functional medicine differs from conventional medicine
Both conventional medicine and functional medicine are valuable forms of care, and one isn’t necessarily superior to the other; in fact, they can even complement each other.

Conventional medicine focuses on diagnosing and treating diseases with standardized treatments (meaning they apply to most people), which may involve undergoing procedures and taking medications.
Functional medicine (not to be confused with holistic or alternative medicine), is simply a different way of thinking that takes a root-cause approach to preventing and treating diseases. Functional medicine uses evidence-based personalized (rather than standardized) interventions to address the “why” of what you’re dealing with—not just focusing on the “what” or diagnosis. These interventions may involve lifestyle modifications, supplements, medication if and when needed, and more.
“Conventional medicine has traditionally approached care from a reactive lens, meaning waiting until someone is sick, then treating the symptoms,” Samson says.

Conventional medicine also often takes a generalized or standardized approach, meaning it treats diseases based on what has worked for a large group of people based on clinical trials and other studies. “[This] made sense as medicine scaled and grew and we had to help more and more people, but it doesn’t always fit the complexity of symptoms people are experiencing,” she adds.

“What we now know,” she continues, “especially through genetics, is that no two people are the same. Functional and integrative care honors that individuality. It’s more personalized, more preventative, and rooted in how the body functions as a whole, not just as a set of isolated systems.”

My MCAS situation can help illustrate the differences. The symptoms that first showed up for me included hives and angioedema (facial swelling). Here’s how conventional and functional medicine approached my condition.

Conventional medicine treated me with antihistamines, medications that block histamine receptors, to prevent the immune system chemicals from causing allergic reactions. This approach was necessary at the time to stabilize me and make me more comfortable.
Functional medicine, on the other hand, focused on resolving factors that were causing my mast cells to behave erroneously—for example, reducing my exposure to certain chemicals and foods, and focusing on gut health. As a result, I have dramatically decreased my reliance on medications, and my MCAS is largely in remission.
As you can see, conventional medicine treated my immediate symptoms, whereas functional medicine focused on getting to the root cause to help manage or resolve symptoms and prevent condition progression.

“In the end, I always say, it’s not about picking one side and dismissing the other,” Samson says. “It’s about understanding that both models have value, depending on the situation. There’s a time and place for medication and urgent care, just like there’s a time and place for deeper root-cause work.”

She makes an important point about not pitting one method against the other. “The goal should always be the same: to help the person in front of us,” she says. “When we stop asking, ‘Which is better?’ and start asking, ‘What does this person need right now?’ that’s where the real change and healing can happen for our patients.”

Is functional medicine legit? Addressing the skepticism
Now, we get to the common question about the legitimacy of functional medicine.

“Skepticism often stems from misunderstanding,” Dr. Minich says. “Functional medicine is not ‘alternative’ medicine. It is an evidence-informed integrative model that applies cutting-edge research in areas like nutrition, the microbiome, toxicology, and systems biology.”

Functional medicine practitioners use a systems biology approach. Think of assembling a puzzle. You develop the big picture by putting pieces together rather than examining one piece in isolation. And no puzzle is identical. Likewise, functional medicine explores the elements that make up a whole person rather than examining just an individual organ or system to see what might be going on.

Functional medicine often uses “lifestyle medicine” to help. This involves focusing on six categories to prevent, reverse, or treat diseases or symptoms. These interventions are based on science, Dr. Minchin says.

Lifestyle medicine

Nutrition
Physical activity
Stress management
Restorative sleep
Social connection
Avoidance of risky substances
Even though lifestyle medicine is a common approach in functional medicine, functional medicine doctors can also prescribe medications, perform diagnostic tests, and more when needed.

Are functional medicine doctors legitimate?
In a related question about legitimacy, people want to know if functional medicine doctors are “real” doctors and whether they undergo any certification. Indeed, they are and they do.

Functional medicine doctors are fully licensed doctors who have gone through traditional medical school and training before undergoing functional medicine training and certification. Other functional medicine practitioners may have nurse practitioner (NP), physician assistant (PA), or doctor of chiropractic (DC) credentials.

How to find a trusted functional medicine provider
The IFM, not only educates functional medicine providers, it also has a certification program and maintains a searchable list to find those who are certified.

What does the research say about functional medicine?
We can look to research to determine more about the outcomes of functional medicine, which can help you determine if it might be right for you.

For example, a 2020 retrospective study explored outcomes for 109 patients with either a diagnosis of rheumatoid or psoriatic arthritis. About half of the participants underwent a functional medicine program as an add-on to a standard-care approach, while the other half received only standard care.

At the end of 12 weeks, the patients in the functional medicine group reported a statistically significant reduction in pain when compared to the group receiving standard care only.

A larger 2019 study assessed health-related quality of life in more than 7,000 patients by reviewing a score based on a questionnaire about their self-reported physical well-being.

The researchers compared results for more than 1,500 patients who received functional medicine care with results from more than 5,600 patients who received traditional primary care. After six months, the patients receiving functional medicine care showed larger improvements in their physical well-being scores when compared with those treated with traditional primary care.

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Key takeaways
Functional medicine is different from conventional medicine in that it investigates root causes of symptoms and disease and tailors treatments and interventions to individuals.
Functional medicine uses evidence-based treatment plans, often focusing on lifestyle changes and other interventions.
Functional medicine physicians undergo the same medical school training as those in conventional medicine, but they have additional training and certification in functional medicine.
If you’re interested in giving functional medicine a try, reach out to Parsley Health for a free consultation.
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FAQ
Is functional medicine trustworthy?
Yes, functional medicine is trustworthy. Functional medicine doctors have undergone traditional medical school and training, and functional medicine is based on science.

Are functional medicine doctors actual doctors?
Yes, functional medicine doctors are fully medically licensed. They are doctors who have gone through traditional medical school and training, though they have undergone additional training and certification in functional medicine practices.

Does insurance cover a functional medicine doctor?
Insurance plans vary greatly from one to another. Some plans cover functional medicine, while others don’t. Some functional medicine providers may offer membership fees that help alleviate expenses. And since functional medicine aims to get at the root cause, you may save on healthcare in the long run. (Parsley Health partners with health insurance providers, and you will always know the price of each test or intervention to avoid any surprises.)

What is the difference between functional medicine and regular medicine?
The main difference between a functional medicine doctor and a “regular” or conventional doctor is their philosophy. Conventional medicine doctors treat symptoms and diseases. Functional medicine doctors focus on the “why?” to help get to the root cause to resolve, reverse, or manage the issue. Functional medicine doctors also treat the whole patient, whereas conventional medicine doctors tend to focus on the affected organ or system.

Can functional medicine doctors diagnose?
Yes, a functional medicine doctor has undergone traditional medical school in addition to training in functional medicine. They can diagnose conditions.

Does functional medicine prescribe medication?
Yes, a functional medicine doctor has undergone traditional medical school in addition to training in functional medicine. Their credentials grant them the ability to prescribe medication and other treatments.

The Problems with Functional Medicine (and What You Should Know Before You Start)
People often come to us a little unsure about functional medicine. They’ve read good things, but also stories that it’s confusing, takes forever, or costs too much.

So let’s just be upfront: there are some problems with functional medicine. Not in the sense that it doesn’t work — but in the sense that there are things you need to understand before you decide if it’s right for you.

Here’s what I’ve seen:

1. Functional Practitioners vs. Functional Doctors
This one trips a lot of people up. A functional doctor and a functional practitioner aren’t the same thing.

Functional doctors usually already have medical training (MD, DO, etc.) and then add functional medicine on top.

Functional practitioners can come from all sorts of backgrounds — nutrition, naturopathy, chiropractic, health coaching.

On paper, that’s the difference. In real life, what matters just as much is the experience they’ve had and the approach they take with you. Two people can have the same certificate but treat patients very differently.

2. Training Isn’t One-Size-Fits-All
There’s no single “right” way to train in functional medicine. At our clinic, most of our doctors train with the Institute for Functional Medicine (IFM). The rest of the team are trained in different ways, but we all speak the same language: root cause, whole person, functional approach.

At the end of the day, the training matters, but what matters more is how your practitioner uses it to support and guide you.







3. It’s Not a Quick Fix
This is a big one. Functional medicine isn’t about handing you a pill and sending you home. It’s about figuring out who you are, how your body works, and what’s really going on underneath the surface.

That takes time. We test. We try things. We re-evaluate. Often it takes a couple of cycles to really understand what your body is telling us.

It’s science, but it’s also trial and error — and patience.

4. You Have to Be Ready for Change
Functional medicine works best when you’re ready to make changes. That might mean in your diet, your lifestyle, your habits.

Sometimes expectations don’t match reality. Patients want results right away, or they say what they think we want to hear. But once they’ve met with the team and we get the full picture, we can see the whole person.

Let me give you an example.

We had a patient who booked a short 30-minute appointment “just to try us out.” They weren’t sure what to expect. Over time, they decided to work with the whole team — doctor, nutrition therapist, and coach. Each person brought out a different piece of the puzzle and helped us see the wonderful person behind the symptoms.

One detail that never came up in the doctor’s appointment was that their elderly mother-in-law, who was unwell, was living right next to the kitchen. Cooking healthy meals had become stressful and sometimes impossible. That only surfaced when the nutrition therapist and coach spent time with them.

Because we had the full picture, we were able to adapt the treatment plan to fit their real life — not just an ideal scenario. That’s what functional medicine is about: personalising care in a way that truly works for you.

5. The Investment
Yes, functional medicine is an investment — in both time and money. There’s no way around that.

But here’s what I’ve seen: when patients stick with it, stay curious, and work in partnership with their practitioner, that investment pays off. The journey is rarely a straight line — it’s full of ups and downs.

And actually? The “downs” are often the most useful. They tell us what’s really going on and help us adjust.

That’s how, over time, people arrive at their dream outcome.


Final Thoughts
So, what are the problems with functional medicine?

The qualifications can be confusing.

The training isn’t standardized.

It takes time.

You have to be ready for change.

And yes, it costs money.

But for the right person — someone who’s ready to dig in, partner with their practitioner, and look at the bigger picture — functional medicine can be exactly what they’ve been searching for.

What Is Functional Medicine?

Functional medicine restores healthy function by treating the root causes of disease. The functional medicine framework allows clinicians to systematically identify and address the underlying processes and dysfunctions that are causing imbalance and disease in each individual. By understanding a patient’s genetic, environmental, and lifestyle influences, functional medicine clinicians create personalized interventions that restore balance, health, and well-being.
Who is IFM?
People on a beach doing yoga, which is a lifestyle factor that can help improve patient health and well-being.
A catalyst in the transformation of healthcare
Functional medicine treats the whole person, addressing the unique physical, mental, and emotional needs of each patient. Clinicians bring together the entire complement of modern scientific tools, including a deep understanding of biology, physiology, genetics, social and environmental determinants of health, and the vital connection between mental and physical well-being. It is this combination of focusing on individual patients and applying a multi-faceted treatment path that delivers transformational results.
What makes functional medicine different?

What makes functional medicine different? More than just a framework for providing personalized care, functional medicine shifts the focus toward ways to cultivate better health so that clinicians and their patients can live healthier, more vibrant lives.
Patient getting a full body wellness check up at a functional medicine clinic
Benefits for Patients
Functional medicine is a comprehensive approach that takes into account all of the factors that contribute to your health and well-being. You and your functional medicine provider work together to create a plan that supports your health needs and goals. We've created free resources to help you better understand the functional medicine approach and what to expect from your first appointment.
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Functional medicine practitioner taking online educational courses through IFM
Benefits for Clinicians
Clinicians choose to practice functional medicine for many reasons, such as improved outcomes with chronic disease patients, an increased sense of professional satisfaction, and decreased feelings of burnout. The functional medicine model is centered around establishing a therapeutic partnership in the clinical encounter, which helps practitioners reconnect to their purpose in medicine. Better outcomes begin with you; learn how functional medicine can transform your practice.
Rediscover your purpose for medicine
Group of physicians standing in their white coats at a participating health system in IFM's organizational memberships
Benefits for Health Organizations
The practice of functional medicine has been shown to improve patient satisfaction, patient outcomes, and provider well-being. In this regard, IFM is an invaluable asset to hospitals, clinics, academic institutions, professional associations, and commercial partners. Collaborations that educate and support clinicians in providing optimal care reduce costs, save lives, and transform healthcare.
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In healing my body, not only during that time, but in the 20 years following my diagnosis, I've had to use all of the tools that we learn in functional medicine to heal the gut and to heal the immune system and to support our bodies in every way. It really took both worlds to save my own life."

— Jill Carnahan, MD, Patient & Practitioner
Learn more about how functional medicine addresses:
Adrenal, Thyroid, & Pituitary Health
Chronic Disease in the US
60
%
of American adults have at least one chronic condition.[1]

42
%
of American adults have two or more chronic conditions.[2]

90
%
of annual healthcare expenditures are for people with chronic and mental health conditions.[3]

See references
Functional medicine is transforming the state of healthcare
As the cost and scope of chronic disease continue to rise, functional medicine is transforming how health care is delivered worldwide. Research demonstrates that the functional medicine model of care enhances patient health outcomes through Patient-Reported Outcomes Measurement Information System (PROMIS) scores[4] and has the potential to improve cost savings over time.[5] Functional medicine is uniquely capable of reversing the chronic disease trend and providing new opportunities for health and healing.

A functional medicine consultation is a 60-to-90-minute, comprehensive, patient-centered session focused on identifying the root causes of chronic health issues, rather than just treating symptoms. Practitioners analyze genetics, environment, and lifestyle to create personalized, integrative treatment plans. It involves in-depth history taking, advanced diagnostic testing, and personalized nutrition/lifestyle interventions.
mosaic-medical.com
mosaic-medical.com
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What to Expect During the Consultation
In-Depth History: Practitioners review your entire health timeline, including childhood history and lifestyle factors like sleep, stress, and diet.
Root Cause Analysis: Instead of diagnosing a single condition, they look at interconnected systems (e.g., gut health, hormones, immunity) to find the cause of symptoms.
Comprehensive Testing: This may include, but is not limited to, functional labs, such as metabolic panels, nutrient assessments, hormone panels, and gut microbiome testing.
Personalized Plan: You will receive a customized plan often involving lifestyle modifications, diet changes, and sometimes supplements.
Collaborative Approach: The process is highly interactive, requiring active participation in your health journey.
Integrative Physio
Integrative Physio
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Common Reasons for a Consultation
Chronic conditions (e.g., autoimmune diseases, fatigue, IBS, thyroid dysfunction).
Unexplained symptoms that conventional medicine hasn't resolved.
Desire for proactive health management and root-cause optimization.
Next Health
Next Health
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Preparation and Costs
Preparation: Fill out detailed intake forms, bring previous lab results, and list all current supplements and medications.
Cost & Insurance: These consultations may be expensive and are not always covered by insurance; some clinics require deposits or have strict cancellation policies.
Follow-up: Follow-up visits are typically needed to monitor progress and adjust treatment plans.

What should you expect from a functional medicine appointment?
Beyond orderly procedures in applying the principles of functional medicine, the experience and skills of the practitioner are instrumental to a worthwhile experience for both the client and practitioner. So, if you decide to embark on your journey to good health and book an appointment with us, what are some things to expect from a functional medicine appointment? What happens in a functional medicine consultation? Read on to find out.

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We Ask Questions
The comprehensive, patient-centered, investigatory approach of functional medicine is apparent from the very first step. We ask questions! What does this mean? First off, we need to know if functional medicine really is an option for you. While functional medicine yields positive results for chronic disorders and for preventative health care, it is an investment in time, finance and commitment to making changes. Typically one of our clinic practitioners would have had an initial discussion with you and deem your situation to be suited to functional medicine and would then refer you. Alternatively, our functional medicine practitioner may have a brief call with you to assess your suitability. If both you and our practitioner feel functional medicine is the way forward, you can schedule an appointment.

Some people may bypass the screening step above for different reasons, but the next step is compulsory and reveals to both yourself and the practitioner whether you will be engaged enough for functional medicine to benefit you.

You will be required to fill out an in-depth health questionnaire prior to your first appointment. Its content comprises questions about your current health symptoms, your medical history, dietary, exercise and other lifestyle habits, a timeline of significant life events including stressors and trauma from childhood to present day, and your family's medical history if known. However intrusive and cumbersome, all these questions may seem, they are not without reason. You are also required to send in a copy of results of any previous tests you have done with your medical doctors or other health practitioners. The information you provide and the results of past tests will then be reviewed and analysed by our functional medicine practitioner to form the big picture of what may have led to your current state of health. This pre-consultation collection of health and life history also helps the practitioner to hone the consultation in a more specific direction when she meets you. Due to the nature of such a questionnaire, it is advised that you take time to fill it out thoroughly..


Blood Test
You Run Tests
During the first consultation, the practitioner will discuss the possible underlying causes to your health issues and you may be asked to run relevant tests. These may range from conventional medical tests to specialised functional ones. These are geared at gaining further insights into, clarifying or confirming suspected risks, triggers and drivers of your disorders. Whether these tests are covered by health insurance depends on the scope of insurance policy you hold. Please check with your insurance provider.

The types of tests carried out generally entail the following:

Stool Test
Stool tests: The gastrointestinal system is implicated in many chronic disorders. It is also an important factor affecting overall health. Therefore, gut (and stool) health is one of the major things functional medicine assesses. This test gives an insight into possible overgrowth of bacteria, viruses, yeasts and parasites, possible inflammation, and the degree of digestion and absorption, among other dietary and metabolic factors.

Blood Test
Blood Tests: These may be blood samples drawn at your doctor’s office or finger prick blood spot samples carried out at home. Besides the conventional medical tests, blood can be used to test for immune reactivities like food sensitivities and essential fatty acids balance, for example. Some DNA tests utilise blood samples, others use buccal swabs.


Urine Test
Urine Tests: Urine tests give insight into a plethora of variables in the human body. They may give an insight into the interplay between the production of different hormones, neurotransmitters and how imbalances may contribute to illness. Organic acids are assessed through urine tests. They give information on certain nutrients status like B and C vitamins and the functioning of the cell energy production cycle. Certain patterns in the markers of organic acids alert the practitioner to specific potential drivers of chronic conditions, for example fungal or mould overgrowth and toxicities. Toxicities from exposure to chemicals may also be assessed via urine testing.



The process of testing to getting the results may take a few days to some weeks. This is because most of these tests are not available locally. In some instances,  they may be quite costly, so you may have to save up for them or if more than one test is relevant for you, you may need to prioritise. Our functional medicine practitioner will explain why specific tests are recommended for you and help you to prioritise. The results will be reviewed and discussed with you at the next follow-up visit. Adjustments and new recommendations to your health programmes will be made as well.

Medical History
You Get A Personalised Health Programme
The beauty of functional medicine is that it recognises there is no one size fits all programme. You, the patient, are a unique individual with your unique genetic make-up, unique life experiences and environmental exposures -  positive and negative. And your current diet, lifestyle, family and work situation pose specific parameters that require both you and the functional medicine practitioner to come up with a set of agreed changes.

The dynamic, two-way approach of functional medicine requires you to be ready to make changes to your diet and lifestyle which may be out of your comfort zone, put in as much effort as possible in carrying out your agreed programme and to be committed to keep going even if at times you can’t be 100 percent compliant. The practitioner in turn is there to listen, no matter how strange certain symptoms may seem, and to help you navigate the complexities of your health condition. She will tweak and adjust your programme at each follow-up visit, to take into account new test results and new feedback from you on difficulties or stages of progress.





Vegetable
Foundation Before Supplements

While the use of nutritional and specialised supplements are used in functional medicine, the first and most important steps to implement are changes to dietary and lifestyle habits.

Bad eating habits are implicated in many chronic diseases. In the same vein, eating the foods that are correct for you at this particular stage of your life, is necessary for the nutrients to support the proper functioning of biological processes in your body’s systems.

At the initial consultation, the functional medicine practitioner will discuss and recommend an overall clean-up of your diet that is immediately necessary even before new tests are carried out.

She will also recommend changes to key lifestyle habits like exercise/movement, sleep habits, sunlight exposure, amount of blue light exposure and if necessary simple stress management techniques.

These recommendations may be broad guidelines if you are already quite clued in. Otherwise they may be specific steps to fit in with your unique work-family-life situation. For example, if you asked to avoid certain foods, what can you replace them with and where can you find these foods and suggestions to incorporate them into your meals. There could be emphasis on how to eat to optimise your digestion or timings.

For lifestyle changes, you may get pointers on how to shift your sleep patterns, how to reset your circadian rhythm and how to schedule in time for sunlight exposure.

If there are environmental exposures that are obviously detrimental to your health, you may get a recommendation to remediate it immediately, for example, getting a mould inspection done.

How much is in the programme will be based on a shared decision and you will receive your agreed programme within a day after the initial consultation.

It is important to realise diet and lifestyle changes are foundations to healing. Getting these in place may often improve your symptoms and help supplements work better or reduce the amount or dosage of medications or supplements you are taking.

Supplements when recommended are again specific to your needs. If you are already taking supplements, the practitioner will usually review them and recommend which you can continue with and which you could stop. New supplements are typically brought in at the follow-up visit especially if there are new test results to guide their requirements.

If you are on medication from your medical professionals, the functional medicine practitioner will need to know what they are so that she can ensure any supplements recommended are not interfering with how the medication works.

Conclusion
Our functional medicine practitioner, Josephine Ng, has been helping people with various chronic illnesses for more than 15 years and has a clientele both in Singapore and abroad. She is a registered Nutritional Therapist, a certified DNALife Practitioner, and a member of the British Association for Nutrition and Lifestyle Medicine and the Institute for Functional Medicine. Your session will be worthwhile because of her expertise and excellent work ethic.
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Functional medicine aims to be evidence-based, focusing on identifying root causes of chronic disease through personalized, lifestyle-driven, and systems-biology approaches. While it utilizes some evidence-based methods like dietary changes and, in some cases, peer-reviewed research, critics argue that many of its practices, such as certain supplements and lab tests, lack rigorous, large-scale clinical validation.
National Institutes of Health (NIH) | (.gov)
National Institutes of Health (NIH) | (.gov)
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Key Aspects Regarding Evidence:
Supportive Research: Studies, including research from the Cleveland Clinic, have shown that the functional medicine model of care can lead to significant improvements in patient-reported outcomes for chronic diseases like type 2 diabetes.
Methodology: It integrates conventional medicine with alternative approaches, often emphasizing lifestyle changes (diet, stress reduction, sleep).
Criticisms: Critics often characterize functional medicine as having a high proportion of unproven, anecdote-based treatments, calling it a "pipeline to alternative medicine".
Conclusion: It is best understood as an emerging, personalized approach that combines evidence-based lifestyle medicine with various, sometimes less validated, complementary practices.
JAMA
JAMA
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It is often used in conjunction with conventional care to improve patient outcomes.

Cleveland Clinic Study Finds Functional Medicine Model is Associated with Improvements in Health-Related Quality of Life
Functional medicine addresses the root causes of chronic disease

In the first retrospective cohort study of the functional medicine model, Cleveland Clinic researchers found that functional medicine was associated with improvements in health-related quality of life. The study was published today in the Journal of the American Medical Association Network Open.


The two-year study examined 1,595 patients treated in Cleveland Clinic’s Center for Functional Medicine and 5,657 patients seen in primary care at a family health center, assessing health-related quality of life using PROMIS®, an NIH-validated questionnaire. PROMIS provides a measure of patients’ global physical and mental health that can be monitored over time, measuring factors like fatigue, physical function, pain, gastrointestinal issues and emotional well-being.

The study investigated the association between the functional medicine model of care and health-related quality of life by comparing functional medicine patients with patients seen in a primary care setting.

Researchers found that patients seen by the Center for Functional Medicine showed beneficial and sustainable improvements in their PROMIS global physical health. At 6 months, patients seen by the Center for Functional Medicine exhibited significantly larger improvements in PROMIS global physical health compared to those seen in a primary care setting. Approximately 31% of patients seen by the Center for Functional Medicine improved their PROMIS global physical health scores by 5 points or more, which is a clinically meaningful change and a noticeable effect on daily life. Twenty-two percent of primary care patients improved their scores by 5 points or more. At 12 months, patients seen by the Center for Functional Medicine showed improvement similar to that observed at 6 months, but these were not significant when compared with the improvements seen in primary care patients.

To examine this further, researchers evaluated continuous changes over time in PROMIS global physical health in a smaller group of patients seen by the Center for Functional Medicine at both 6 and 12 months and demonstrated improvements in PROMIS global physical health that were significantly larger compared to patients seen in a primary care setting.

Researchers believe that reasons for the improvements in health-related quality of life shown in the functional medicine patients include differences in the functional medicine model itself, the types of patients seeking functional medicine, and treatment adherence or belief in the model of care. Future prospective studies are needed to examine the functional medicine model of care and long-term outcomes.


Michelle Beidelschies, Ph.D.
“This is a first-of-its-kind study to evaluate the impact of functional medicine model of care on patients’ health-related quality of life. In the past, evidence to support the model has been primarily anecdotal, published as case reports or based on specific, targeted interventions used as part of the functional medicine approach, such as nutritional changes,” said Michelle Beidelschies, Ph.D., director of Research and Education for the Cleveland Clinic Center for Functional Medicine and the lead author of the study. “Functional medicine practitioners have suggested that their patients are improving with a systems-based approach to chronic disease. Now, they have evidence that their approach is associated with improved quality of life.”

Patients seen in the primary care setting center had a higher median income, higher mean baseline PROMIS scores and a higher prevalence of diabetes and hypertension.

Functional medicine looks at the body as a whole and focuses on the root causes of disease rather than an isolated set of symptoms. It’s based on the evidence that lifestyle factors – such as nutrition, sleep, exercise, stress levels, relationships and genetics – are major contributors to chronic disease.

In 2014, Cleveland Clinic became the first academic medical center to open a Center for Functional Medicine. Cleveland Clinic’s Center for Functional Medicine requires that all new patients see a registered dietitian and health coach, in addition to a provider as part of their initial visit, which typically lasts about 60 to 75 minutes. Patients also have the option to meet with a behavioral health therapist as part of any visit.

Six Examples of Functional Medicine
Functional medicine is a patient-centered approach that seeks to identify and address the underlying causes of disease by considering the complex interactions between genetics, lifestyle (such as diet, exercise, and stress), and environmental factors. It uses advanced testing to analyze systems like gut health, hormone balance, inflammation, and detoxification, aiming to uncover dysfunctions that contribute to chronic conditions. Treatment plans are highly individualized and often include nutritional strategies, lifestyle modifications, targeted supplementation, and other therapies to restore optimal vitality.
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What is Functional Medicine?
Functional medicine is a personalized approach to healthcare, aiming to treat individuals as a whole rather than address isolated symptoms. This approach uses a science-based approach to health. Unlike conventional medicine, which often focuses on symptom management, functional medicine seeks to identify and correct the root imbalances that contribute to illness. By addressing the root causes, they help restore health. This approach lets patients and doctors work together to tackle the underlying issues

Key Characteristics of Functional Medicine:
Patient-Centered Approach: Our providers take the time to truly understand you—your health history, lifestyle, and personal goals. This deeper connection allows us to create care plans that are uniquely tailored to your needs.
Holistic Approach to your health: We see health as more than the absence of disease. At Vida, we consider the physical, mental, emotional, and even spiritual aspects of your well-being, recognizing how each one influences the others.
Root Cause Analysis: Instead of simply managing symptoms, we aim to uncover the underlying imbalances and triggers contributing to illness. By addressing these root causes, we can support long-term healing and vitality.
Systems Biology Approach: Your care is guided by the understanding that all body systems are interconnected. We consider how genetics, environment, and lifestyle factors work together to impact overall health.
Integration of Treatments: Functional medicine at Vida blends the best of conventional medicine with evidence-based natural and lifestyle interventions—such as nutrition, movement, stress management, and supplements—to create a truly integrative care experience.
What is a Functional Doctor?
A functional medicine doctor is a healthcare provider who focuses on identifying and addressing the root causes of illness rather than just treating symptoms. They take a whole-person approach, considering how systems like the gut, hormones, brain, and immune system are interconnected. Using advanced testing and in-depth conversations about your health history, lifestyle, and goals, they create highly personalized care plans. This often includes a blend of conventional medicine, nutrition, lifestyle changes, and natural therapies to support longevity.

Key components of Functional Medicine include comprehensive lab testing, specialty testing, detailed patient histories, and an emphasis on preventive care.

How Functional Medicine Differs from Conventional Care
Treating the Root Cause vs. Managing Symptoms

In conventional medicine, care often focuses on relieving symptoms—typically with medications or short-term solutions. Conventional approaches can sometimes take a one-size-fits-all path. Functional medicine providers go deeper. We look for the root causes of illness by exploring how your body’s systems interact, aiming to correct underlying imbalances rather than just masking discomfort. This individualized care allows us to create strategies designed to restore balance and help you thrive long-term.


What are Common Conditions that Functional Medicine Treats?
Hormone Health– Thyroid Disorders, PCOS, Low Testosterone, Adrenal Fatigue, Perimenopause, Menopause, Endometriosis, PMS
Gut Health – Digestion, Microbiome analysis, SIBO, IBS, Crohn’s, Leaky gut, Ulcers, Food intolerance, Acid Reflux.
Mood Disorders– Anxiety, Depression, Insomnia
Skin conditions – Eczema, Psoriasis, Acne
Autoimmune Disorders– Rheumatoid Arthritis, IBD, MS, Hashimoto’s, Graves Disease, Celiac issues
Metabolism & Weight Loss – Metabolic Syndrome, High Blood Pressure, High Cholesterol, Diabetes, obesity, inflammatory bowel disease
Six Examples of Functional Medicine
Functional Nutrition & Meal Plans
Functional Nutrition serves as the cornerstone of Functional Medicine, offering a holistic approach to health that goes beyond traditional dietary advice. It focuses on various aspects of lifestyle medicine, addressing everything from food and digestive health to sleep and exercise.

Using advanced tools like DEXA scans, glucose monitoring, and nutritional trackers, functional nutrition practitioners create personalized dietary plans tailored to each individual’s needs. These plans are designed to optimize health by considering a person’s unique circumstances and health conditions.

The primary goal of functional nutrition is to restore and rebalance the body’s physiological functions through targeted nutritional strategies. By addressing issues like nutrient deficiencies, poor digestion, malabsorption, bacterial overgrowth, and chronic inflammation, functional nutrition aims to correct imbalances and promote overall wellness. This approach not only supports immediate health improvements but also encourages long-term vitality and disease prevention.

Functional Nutrition is just one piece of the puzzle when it comes to achieving optimal health with Functional Medicine. For those seeking a more comprehensive approach, Vida Integrated Health in Seattle, Washington offers a full spectrum of Functional Medicine services designed to address the intricate and interconnected aspects of your well-being.

Mindfulness and Stress Management
Functional Medicine integrate mindfulness and stress management techniques as foundational elements. Finding a comprehensive approach like this in regular medical settings can be uncommon. Our physicians guide patients in practices that include mindfulness exercises, stress reduction techniques, and emotional wellness. These practices aid in achieving a balanced state of health, reflecting our commitment to treating the whole person.

In functional medicine, stress is not viewed as an abstract concept, but as a measurable biological influence on hormones, immune function, digestion, and metabolic health. Chronic activation of the stress response can disrupt cortisol rhythms, impair gut integrity, alter blood sugar regulation, and amplify systemic inflammation. By addressing stress physiology alongside nutrition, movement, and targeted clinical care, our physicians help patients restore nervous system balance and improve the body’s capacity to heal. This integrated approach supports sustainable health outcomes rather than short-term symptom management.

Advanced Diagnostic Testing
Vida uses advanced techniques such as VO2 max and sub VO2 max testing, DEXA scans, cardiovascular screenings, genetic analysis for neurodegenerative conditions, and blood tests for early cancer detection. This approach allows Vida’s Functional Medicine Physicians to delve into a patient’s genetic, metabolic, and biochemical status, uncovering the root causes of illness. By addressing these underlying causes, treatments can be tailored to each individual, moving beyond the one-size-fits-all solutions.

Regenerative Medicine
Vida Integrated Health’s functional medicine extends to regenerative medicine, focusing on healing from the inside out. Our musculoskeletal regenerative medicine program adopts a holistic approach to health. Techniques like Platelet-Rich Plasma (PRP) therapy are used for joint and tendon healing. This technique offers patients non-surgical options to alleviate pain and improve function. PRP therapy can also emphasize the body’s natural ability to heal and regenerate, aligning with our commitment to providing comprehensive care solutions​​.

Emsella Chair Therapy
The Emsella chair therapy can help strengthen the pelvic floor muscles, improving urinary continence or sexual function. It is primarily used for those who have gone through menopause or prostate surgery. The Emsella chair uses stimuli to improve muscular contractility and blood flow, offering a non-invasive solution to enhance pelvic health and quality of life​​.

Anti-Aging and Longevity
True longevity begins with a strong foundation. Before we optimize, we restore. Your journey starts with a deep dive into your health history, lifestyle, stressors, genetics, and more. We look at everything from gut health and nutrition to sleep, movement, cognitive function, and recovery habits — because your whole system matters.
Once that foundation is in place, select patients may benefit from advanced therapies designed to support tissue repair, resilience, and healthy aging. One option we offer is Platelet-rich Plasma (PRP) therapy, an anti-aging and medical treatment. This non-surgical, minimally invasive procedure uses the patient’s blood to promote cell regeneration and rejuvenation, especially in the skin. PRP therapy can help reduce fine lines, wrinkles, and age spots, improving skin texture and tone. It is also used for treating various conditions like arthritis, sports injuries, sexual health, hair loss, and facial aesthetics.

Preparing for Your First Functional Medicine Consultation
Functional medicine has become an increasingly popular option for individuals in Melbourne seeking a more personalised, root-cause approach to their health. Whether you’re navigating persistent symptoms that haven’t been fully explained, or you’re simply looking for a more proactive and holistic way to manage your well-being, functional medicine offers an opportunity to explore your health through a broader lens.

If you’re considering booking your first consultation, a functional medicine doctor in Melbourne can help guide you through this integrative approach to healthcare. This guide walks you through what to expect, how to prepare, and how functional medicine is applied within the Melbourne healthcare context.





What is Functional Medicine?
Functional medicine focuses on identifying and addressing the underlying causes of health issues rather than just managing symptoms. It’s a collaborative, patient-centred approach that considers genetic, environmental, and lifestyle factors that may influence your long-term health.

Unlike conventional medicine, which often centres on short, symptom-specific visits, functional medicine appointments are generally longer and more exploratory. In Melbourne, many integrative clinics and functional GPs now offer services that blend the best of conventional diagnostics with personalised, lifestyle-focused care plans tailored to each individual’s unique needs.



Why People in Melbourne Are Exploring Functional Medicine
In a city like Melbourne—where busy lifestyles, high stress, and complex health presentations are common—many individuals seek functional medicine to gain deeper insight into their wellbeing. Some have had unresolved health concerns for years, while others simply want to take a more preventative and personalised approach to managing their health.

Common reasons people explore functional medicine include low energy, persistent digestive symptoms, hormonal fluctuations, autoimmune conditions, chronic inflammation, or simply feeling “not quite right” despite normal test results. While no promises can be made about outcomes, this model of care aims to investigate the broader context of your symptoms to uncover contributing factors that may have been overlooked.



Before the Appointment: How to Prepare
Preparation plays an important role in functional medicine. You may be asked to complete a comprehensive health history form before your consultation. This may include details about your medical background, diet, sleep habits, physical activity, emotional wellbeing, and even environmental exposures.

Some practitioners may request that you track your food intake, sleep quality, energy levels, or mood in the days or weeks leading up to your first appointment. Bringing previous test results, a list of current medications or supplements, and any health-related notes can help paint a more complete picture.

It’s also worth taking time to consider your health goals: Are you seeking clarity on a particular symptom? Do you want to support your energy, digestion, or mental clarity? Clear goals help shape the direction of the consultation.



What to Expect During the Consultation
Your initial functional medicine consultation is likely to last between 60 and 90 minutes. This extended time allows your practitioner to explore your concerns in depth. Unlike conventional appointments that may focus narrowly on a single symptom, functional medicine consultations take a systems-based view—looking at how all areas of your health may be interconnected.

You’ll likely discuss your entire health timeline, including childhood history, significant life events, and your current lifestyle. The practitioner may also ask about sleep, stress, social connections, dietary habits, and more. This comprehensive approach helps identify patterns or contributing factors that may not be immediately obvious.

Importantly, the consultation is collaborative—you’re encouraged to ask questions, share insights, and be actively involved in the discovery process.



Common Conditions and Concerns Explored
Functional medicine practitioners see a wide range of presentations, but some of the most common concerns include digestive discomfort, fatigue, thyroid and hormonal imbalances, skin issues, recurring infections, food sensitivities, and chronic stress.

In Melbourne, functional medicine practitioners often support people who feel frustrated by recurring symptoms that haven’t been addressed through conventional means. However, it’s crucial to note that functional medicine focuses on investigation and support—it does not offer guarantees or quick fixes.



Diagnostic Methods and Functional Lab Testing
Depending on your needs, your practitioner may recommend specific tests to gather more information. In addition to standard pathology (which may be bulk billed if ordered by a medical doctor), you might also be offered functional testing.

These may include microbiome analysis, food sensitivity testing, hormonal profiling, or nutrient level assessments. The goal of these tests is not simply to identify what’s “abnormal,” but to understand patterns and imbalances that may influence your health.

In Victoria, many practitioners access functional pathology labs in Melbourne that offer a wide range of specialised tests. These tests are generally paid for privately and are interpreted in conjunction with your full health history to form a more complete clinical picture.



Developing a Personalised Health Plan
After gathering a detailed history and any relevant test results, your practitioner will begin to build a tailored health plan. This plan may include dietary changes, lifestyle adjustments, nutritional supplementation, stress management techniques, and sometimes referrals to other healthcare professionals.

What sets this process apart is its flexibility. Functional medicine is not about a one-size-fits-all prescription—it’s about creating an evolving strategy that aligns with your goals and adjusts as your body responds. You’ll typically receive written recommendations and may be invited for follow-up consultations to review progress and refine the plan over time.



The Role of Follow-Up and Long-Term Care
Functional medicine is often a longer-term journey rather than a single appointment. While some people notice improvements relatively quickly, others require more time to see significant changes. Follow-up consultations allow your practitioner to track your progress, address challenges, and continue fine-tuning your care plan.

In Melbourne, some clinics offer structured care packages that include follow-up visits, test reviews, and practitioner access. Whether or not this is offered, consistency and communication remain key to achieving the best outcomes.



Can You Still See Your GP?
Absolutely. Functional medicine is designed to work alongside, not replace, conventional care. Many patients in Melbourne continue to see their regular GP for general health needs, prescriptions, and screenings, while using functional medicine for deeper exploration and lifestyle-focused support.

This integrative approach ensures you’re supported from multiple angles, with both conventional and complementary insights guiding your care.