VITAMINS FOR Women VITAMINS FOR Men VITAMINS FOR 50+ Adults WHY ONE A DAY® Good Stuff You Want, Free of Stuff You Don't. Read More WHY ONE A DAY® Formulas Designed by Experts Read More Look for the following “Free Of” icons on select products. One A Day® is a vitamin and mineral supplement that helps fill dietary gaps. To be sure this product is right for you, always read and follow the label.