There are two main sources of protein: plant-based and animal-based. The latter includes such sources as milk, cheese, eggs, fish, turkey, chicken, beef and other meat products. These animal-based proteins are considered to be complete proteins because they contain all of the amino acids required by the body. Amino acids are the 20 basic building blocks of protein. Nine of these are known as the essential amino acids because they cannot be manufactured by the human body and must be ingested.

Plant proteins, with a few exceptions, are incomplete, since they are missing at least one of the essential amino acids. Soy and derivatives such as miso, tempeh and tofu are complete sources of protein. One of the benefits of plant proteins is their tendency to be lower in calories and fat. Their lack of saturated fats is of particular note, especially for those kidney patients who are trying to follow a more healthy diet and keep the pounds off.


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