What are some good sources of vitamin B?

You'll find plenty of B vitamins in a variety of foods (chiefly brewer's yeast, wheat germ, whole grains, beans, dark green vegetables, low-fat and nonfat dairy, fish, eggs, and poultry), but to ensure that you get an adequate daily supply, it's best to supplement with a B complex every day that covers all eight Bs -- thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folic acid (B9), and cyanocobalamin (B12). These gems are important to energy metabolism and can easily be stripped from the body as a result of stress and certain medicines. Women who take the birth control pill, for example, have been shown to have low blood levels of B vitamins, which may then trigger migraines.