Since 1947 Energy Metabolism Cardiovascular Health Nervous System Support Non GMO Gluten, Wheat & Dairy Free Suitable for Vegans Dietary Supplement Halal Certified Gluten Free Kosher ParveEach 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.