Migraine

Vitamin B2: A Belgian study found that 60% of people who took 400 milligrams of this vitamin everyday had half their usual number of migraines.

Feverfew: This popular herb offers "mild and transient" benefits, according to British researchers, but in a recent study of a feverfew extract containing a consistent level of parthenolide, migraines were reduced from 5 per month to 3.

Melatonin: Two-thirds of study participants who took melatonin before going to bed every night for 3 months said the number of migraines they experienced dropped by 50%.

Butterbur-based remedies:One expert calls these "the best safety-tested herbal to date for the treatment of headache." According to the journal Neurology, 68% of those who took a butterbur product called Petadolex saw the number of migraines they experienced drop by 50%.