Solgar B-Complex 100 Vegetable Capsules contains all the members of the Vitamin B family. Human body needs these vitamins to turn carbohydrates, fats and proteins into energy. Each required nutrient in the Vitamin B Complex performs a unique role in maintaining proper metabolic functioning, while nutritionally supporting the body during the occasional stress of daily living. B Complex vitamins are needed for the metabolism of carbohydrates, fats, and proteins, which converts food into energy. In addition, these vitamins play a necessary role in supporting cardiovascular and nervous system health. This essential supplement helps maintain proper heart and nervous system health to help you stay strong and active. Vegans, women and the elderly may have increased need for certain B vitamins. This supplement helps them maintain good health.