One doesn’t need to venture far into the vitamin world to hear one thing or another about the B vitamins. They are perhaps the most renowned of the vitamin supplements. Nearly everyone frequently supplements their diet with a B-complex vitamin from time to time.

The B-complex family of vitamins is made of several assorted vitamins. Included in this group of vitamins are vitamin B1 (thiamin), vitamin B2 (riboflavin), vitamin B3 (niacin), vitamin B5 (pantothenic acid), vitamin B6 (pyridoxine), vitamin B9 (folic acid), vitamin B12 (cobalamin) and biotin (vitamin H).

Various conditions can arise if enough of the B vitamins are not present in the diet. For example, it's been shown that too little biotin and pantothenic acid can lead to dry hair. Pantothenic acid, also known as vitamin B5, is a B-complex water-soluble vitamin that is key for maintaining and improving bodily processes, such as cellular metabolism. This vitamin is absolutely paramount for normal bodily functions.

Thiamin, also called vitamin B1, is another form of vitamin key to the body that is also water-soluble. Alcoholics and smokers usually have a problem absorbing vitamin B-complex and vitamin C respectively. This is due to the dehydration that generally occurs with these habits. Because these vitamins are water-soluble, the body rids itself of them somewhat quickly and they need to be replenished often. These vitamins are considered to be virtually non-toxic due to their water-soluble nature.

Study indicates that high stress amounts also cause society to have decreased levels of B-complex vitamins. Deficiencies of the B-complex vitamins can lead to a host of other problems, including depression, irritability, and irregular nerve functioning. B vitamins can help deflate the effects of stress, assist in adrenal function, sleep disorders and immune function.

Of course, one of the most popular of the B vitamins is vitamin B12. Vitamin B12 helps form red blood cells and is needed for a healthy brain and nervous system function.

Because vitamin B12 is only found in animal products, vegetarians are at an increased risk of a vitamin B12 deficiency and supplementation may be necessary. Most will be comforted to learn that both eggs and dairy products are included in the list of animal products that supply B12. Other outstanding sources of this vitamin include beef and salmon.

Supplementation with B-complex vitamins are often recommended when one experiences decreased energy levels. Often this is one of the first indications that there may be a deficiency.

Learn what you can about the B vitamins and consult your physician or nutritionist concerning whether supplementation is right for your circumstance.