The B vitamins are a group of 8 individual vitamins, often referred to as the
"B-complex" vitamins. These vitamins are essential for the breakdown of carbohydrates into glucose (this provides energy for the body), the breakdown of fats and proteins (which aids the normal functioning of the nervous system) and muscle tone in the stomach and intestinal tract.

B-complex vitamins are also important for healthy skin, hair, eyes, mouth tissues and your liver. They enhance immune functions, promote healthy cell growth and support and increase the rate of your metabolism.

The B-complex vitamins are found in brewer's yeast, liver, whole-grain cereals, rice, nuts, milk, eggs, meats, fish, fruits, leafy green vegetables and many other foods.

All B vitamins are water soluble, and are dispersed throughout the body. Most of the B vitamins must be replenished regularly, since any excess is excreted in the urine. Some doctors and nutritionists suggest taking the B-complex vitamins as a group for overall good health.