The vitamin B family is a group of eight vitamins that have many essential roles in the body including energy production, mood regulation, nerve function support and offseting the effects of stress. B vitamins are water soluble, and as a result they are easily lost from the body through urine and sweat. This, along with other factors such as a modern diet high in processed foods, makes it easy to become deficient in B-vitamins. Additionally, certain groups such as vegans, vegetarians and the elderly are at greater risk for becoming deficient. Deficiency can lead to numerous health issues including blood sugar imbalances, neurological disorders, anemia and depression.