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General Questions

Vitamins are organic compounds in food that are needed to support growth and health. With a regular supply of vitamins, we can support good health and normal growth. Since the body does not store all essential vitamins for long periods of time, some should be consumed regularly in the diet. One A Day® multivitamins can be taken to help provide nutritional support.
All One A Day® products are complete multivitamins, but each one is uniquely formulated to support different needs. You can choose a One A Day® product based on gender, age group, and health benefits you may need or want to support.
All One A Day® (OAD) tablet and VitaCraves® products contain gelatin, it is sourced from beef or pork or a combination of both. Gelatin can function as an incidental ingredient in tablet products and can therefore be exempt from labeling based on FDA regulations. As there is increased consumer interest in gelatin, Bayer has recently revised internal labeling practices to list gelatin in the ingredient statement, regardless if it is exempt from labeling. Ingredient statements for OAD tablet products that currently do not list gelatin will be updated to include it with future labeling updates.
Not all One A Day® products are gluten free. One A Day VitaCraves® products contain wheat. There are some One A Day® products that meet US Food and Drug Administration (FDA) regulations for gluten free (less than 20 ppm gluten). If a product is gluten free, it will be stated on product packaging.
We recommend that you consult with your physician before using any One A Day® product if you have a medical condition.
We recommend that you consult with your physician before using any One A Day® product with your medication. We do not recommend taking One A Day® with another multivitamin.
We do not recommend using products beyond their expiration date. While they will not be harmful, products that are taken beyond the expiration date may no longer provide optimal benefits.

Women's Prenatal Questions

DHA (docosahexaenoic acid) is an Omega-3 fatty acid found naturally in fish such as tuna and salmon. DHA can also be found in algal oil. It is a major structural fat in your baby's brain and the retina of your baby's eyes. Supplementing your diet with DHA can help support healthy fetal brain and eye development.* Our Prenatal 1 and Women's Prenatal both have DHA sourced from fish and our Prenatal Gummies have DHA sourced from algal oil.
Yes, it is safe for most women to take One A Day® Women's Prenatal. See the product page for specific warnings and allergen statements. One A Day® Women's Prenatal includes 800 mcg of Folic Acid (100% of the Daily Value for pregnant women). Inform your doctor if you are taking One A Day® Women's Prenatal.
The benefits of a prenatal multivitamin generally begin before pregnancy or in the very early stages of pregnancy. Prenatal multivitamin use, then, is commonly recommended to start before trying to become pregnant. Also, because pregnancy is sometimes unplanned, experts recommend 400 mcg of folic acid in addition to intake of food folate from a varied diet during the span of a woman's childbearing years. Use of One A Day® Women's Prenatal should be consistent throughout pregnancy and continued while breastfeeding as DHA will pass from mother to baby in breast milk to help support healthy brain and eye development in infancy*.
The One A Day® Women's Prenatal 1 softgel should not be cut or crushed.
Yes, there are differences. The One A Day® Women's Prenatal 1 softgel contains less calcium than One A Day® Women's Prenatal (200 mg vs. 300 mg of calcium) in order to be able to fit all the ingredients into one soft gel per serving. In addition, the One A Day® Women's Prenatal 1 and One A Day® Women's Prenatal both contain iron whereas the gummy does not contain iron. Please see supplement facts for ingredient details.

Men's Pre-Conception Questions

"Pre-Conception" is the time before your partner becomes pregnant -when you may be actively trying to get pregnant or just thinking about starting the process. Before pregnancy is actually the best time for both you and your partner to prepare your bodies.
One A Day® Men's Pre-Conception Health Multivitamin is specially formulated with key levels of powerful antioxidants like Vitamins C and E - to support healthy sperm.*
Yes - in addition to being specially formulated with key levels of powerful antioxidants like Vitamins C and E to support sperm health*, One A Day® Men's Pre-Conception Health is also a complete multivitamin. So you don't need another multivitamin.
Men can benefit by taking One A Day® Men's Pre-Conception Health Multivitamin for at least 3 months before, and while trying, to conceive. You can continue to take this multivitamin for as long as you like, although you may choose to stop once conception occurs. If you do choose to stop, we recommend that you continue with One A Day® Men's Health Multivitamin.
Yes, you can continue to take this multivitamin after you conceive. And in the spirit of camaraderie, it may make sense to continue as long as your partner is taking her prenatal multivitamin. When you do decide to stop taking One A Day® Men's Pre-Conception Health Multivitamin, we recommend switching to One A Day® Men's Health Multivitamin, to continue your vitamin regimen.
No. Recent studies suggest a clear link between antioxidant levels and healthy sperm. And up to 85% of men fall short in getting key antioxidants like Vitamin C (46%) and Vitamin E (85%) from food alone. So most men can benefit from taking this product.
At this time, the Men's Pre-Conception Health Multivitamin is only available in the twin pack with the Women's Prenatal Multivitamin. But this is a great way to ensure that you both take your vitamins daily -as you can make it a habit to take your vitamins together.