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 tissues.* Prolonged release vitamins slowly release nutrients into the body over an extended period of time.Ingredients:Supplement FactsServing Size: 1 TabletAmount Per Serving% Daily ValueThiamin (as Thiamin Mononitrate, Vitamin B-1)100 mg8,333%Riboflavin (Vitamin B-2)100 mg7,692%Niacin (as Niacinamide)100 mg625%Vitamin B-6 (as Pyridoxine HCl)100 mg5,882%Folate667 mcg DFE(400 mcg Folic Acid167%Vitamin B-12 (as Cyanocobalamin)100 mcg4,167%Biotin100 mcg333%Pantothenic Acid (as d-Calcium Pantothenate)100 mg2,000%Calcium (as Calcium Carbonate Dicalcium Phosphate)124 mg10%Other Ingredients: Cellulose, Stearic Acid, Hydroxypropyl Methylcellulose, Silicon Dioxide. Contains 2% of: Dicalcium Phosphate, Ethylcellulose, Magnesium Silicate, Magnesium Stearate, Pharmaceutical Glaze, Polyethylene Glycol, Polysorbate, Polyvinyl .