One A Day Frequently Asked Questions

Multivitamins

Q. Why are vitamins important?

A. Vitamins help release energy from our food and help build muscle, bone, blood and other vital tissue. Without a regular supply of vitamins, we cannot maintain good health and normal growth. Since the body does not store all essential vitamins for long periods of time, some have to be supplied on a regular basis. One A Day supplements can be taken to help support complete nutrition.

Find out which One A Day products might be right for you through our interactive quiz, Which Multivitamin Is Right For Me? Back to Top

Q. Which One A Day Formulas are available?

A. Below is a list of all One A Day multivitamins. Click on the name for more product information. Back to Top

Q. Which formula should I use?

A.
One A Day Women's: Complete multivitamin with more calcium to promote strong bones, and more Vitamin D - which emerging research suggests may support breast health*
One A Day Men's Health Formula: Complete multivitamin specially formulated with Selenium, which emerging research suggests supports prostate health*
One A Day Women's 50+ Advantage: Complete multivitamin with more calcium to promote strong bones, more Vitamin D to support breast health* and Ginko to support memory and concentration*
One A Day Men's 50+ Advantage: Complete multivitamin specially formulated with Selenium to help support prostate health and Ginko to support memory and concentration*
One A Day Women's Prenatal: Complete prenatal multivitamin plus DHA/EPA liquid gel available over-the-counter.
One A Day WeightSmart Advanced: Complete multivitamin to support general nutrition and energy while you diet and exercise* Not a weight control product
One A Day Cholesterol Plus: Complete multivitamin that helps maintain healthy cholesterol and blood pressure levels*††
One A Day Active: Complete multivitamin that helps you maintain your vitamin and mineral levels so that you can enjoy your active lifestyle*
One A Day Maximum: Complete multivitamin that helps maintain your natural defense and immunity while converting food to physical and mental energy.
One A Day Essential: Complete multivitamin formulated to help support heart health, immunity, eye health and physical and mental energy.
Compared to One A Day Essential
††Cholesterol and blood pressure levels already within the normal range
*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.
You can also find out which One A Day products might be right for you through our interactive quiz, Which Multivitamin Is Right For Me? Back to Top

Q. What is the difference between formulas?

A. For more information about a particular One A Day formula, please see chart above or click on the One A Day Multivitamin formula links located on the homepage. Find out which One A Day products might be right for you through our interactive quiz, Which Multivitamin is Right for Me? Back to Top

Q. Can a man or woman use this formula?

A. Find out which One A Day products might be right for you through our interactive quiz, Which Multivitamin Is Right For Me? Back to Top

Q. How much calcium does this contain?

A. For more information about the amount of calcium in a particular One A Day formula, please click on the One A Day formula link on the homepage and review the supplement facts for the One A Day formula of interest. Back to Top

Q. Can the tablets be crushed/cut in half?

A. Most One A Day formulas may be crushed or cut in half. Back to Top

Q. Does One A Day Contain gelatin?

A. Yes, many formulas contain gelatin as an inactive ingredient. It is sourced from beef, pork, or a combination of both. Back to Top

Q. How much gluten does this contain?

A. We do not add any gluten to our products. However, we cannot guarantee that all raw materials are 100% gluten-free. Back to Top

Q. How much iron does this contain?

A. For more information about the amount of iron in a particular One A Day formula, please click on the One A Day formula link on the homepage and review the supplement facts for the One A Day formula of interest. Back to Top

Q. How much "preformed" or Retinol Vitamin A is in each of your products? How much Beta-Carotene?

A.
Product Total Vitamin A Amt. Pre-Formed
Vit. A
% Pre-Formed
Vit. A
Amt. Beta Carotene % Beta Carotene
Women's 2500 IU 2000 IU 80% 500 IU 20%
Men's Health Formula 3500 IU 3000 IU 86% 500 IU 14%
Women's 50+ Advantage 2500 IU 2000 IU 80% 500 IU 20%
Men's 50+ Advantage 2500 IU 2000 IU 80% 500 IU 20%
WeightSmart Advanced 2500 IU 1750 IU 70% 750 IU 30%
Cholesterol Plus 2500 IU 1750 IU 70% 750 IU 30%
Active 5000 IU 3000 IU 60% 2000 IU 40%
Maximum 2500 IU 2000 IU 80% 500 IU 20%
Essential 3000 IU 2500 IU 83% 500 IU 17%
Based on the latest science, including a study published in the Journal of the American Medical Association (Jan. 2002), One A Day products were reformulated with reduced levels of performed Vitamin A. There is evidence that consuming more than 5000IU of Vitamin A–from any combination of food and supplements–can be harmful to your bones.
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Q. What is the dosage for a teenager?

A. All of our One A Day multivitamins except WeightSmart Advanced, and Active may be used by persons 12 years of age and older. Back to Top

Q. Can I use this if I have a medical condition?

A. We recommend that you consult with your physician before using any One A Day product if you have a medical condition. Back to Top

Q. Can I use this with my medication?

A. We recommend that you consult with your physician before using any One A Day product with your medication. Back to Top

Q. Can I take One A Day with another multivitamin?

A. We do not recommend taking One A Day with another multivitamin. Back to Top

Q. Should I take my One A Day supplement with food?

A. Yes, we recommend that you take your One A Day multivitamin with food to reduce the chance of stomach discomfort. Back to Top

Q. When is the best time to take my One A Day multivitamin?

A. You may take a One A Day multivitamin any time of the day, as long as you take it with food. It is also suggested that One A Day be taken at the same time every day so that it becomes part of your daily routine. Back to Top
One A Day Multivitamins Frequently Asked Questions Women's Prenatal Frequently Asked Questions WeightSmart Advanced Frequently Asked Questions Which Multivitamin is Right for Me? Bayer Consumer Care Press Room Contact Us Where to Buy