B vitamins are interdependent upon each other and interrelated in function; they help convert food into energy and help maintain the nervous system and body tissue.* Prolonged release vitamins slowly release nutrients into the body over an extended period of time. No added sugar, yeast, preservatives, artificial flavors or colors. Gluten free. *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.