Dietary Supplement. List No. 4044 601. USP verified dietary supplement. USB has tested and verified ingredients, potency and manufacturing process. USP sets official standards for dietary supplements. www.uspverified.org. No artificial flavors. Gluten free. Over 45 years of expertise. Clinically proven absorption of Iron & Zinc. Including iron & zinc. 22 key nutrient for daily nutritional support. www.NatureMade.com.