Frequently Asked Questions

One A Day Frequently Asked Questions

Below are answers to some of our consumers' frequently asked questions. If you do not find the answer you are looking for, please click here to ask us your question or to give us your comments.

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general women's prenatal women's active metabolism menopause formula

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, What’s Your One A Day?

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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 General Questions

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Q. Which formula should I use?

A.

- One A Day Women's:

A complete multivitamin with more‡ Calcium for bone health and more† Vitamin D for breast health.

‡With 25% DV more Calcium than Nature Made for Her (500 mg vs. 250 mg)

†With 50% DV more Vitamin D than Centrum Ultra Women's (1000 IU vs. 800 IU)

- One A Day Men's Health Formula:

A complete multivitamin plus key nutrients to support a healthy heart, healthy blood pressure††, immunity and physical energy.*

††For blood pressure levels already within the normal range

- One A Day Men's Pro Edge:

A complete multivitamin for the physically active guy formulated to support healthy muscle function, physical energy, and increased antioxidant needs from physical activity.*

- One A Day Women's 50+ Advantage:

A complete multivitamin with more‡ Calcium and more† Vitamin D for bone and breast health, plus Ginkgo for memory & concentration.*

‡With 30% DV more Calcium than Nature Made Senior for Her (500 mg vs. 200 mg)

†With 50% DV more Vitamin D than Centrum Ultra Women's (1000 IU vs. 800 IU)

- One A Day Menopause Formula:

A complete multivitamin for women going through menopause, formulated to help reduce daytime & nighttime hot flashes, address mild mood changes, and support energy & healthy skin.*

- One A Day Men's 50+ Advantage:

A complete multivitamin specially formulated with Gingko to support memory and concentration.*

- One A Day Women's Prenatal:

A complete prenatal multivitamin plus DHA/EPA liquid gel available over-the-counter.

- One A Day Women’s Active Mind & Body:

A complete multivitamin with more† calcium to promote strong bones, and more† Vitamin D -– which emerging research suggests may support breast health.* Plus it contains a guarana blend and B-Vitamins to support mental alertness and physical energy for your active lifestyle.*

†Compared to One A Day® Essential

- One A Day Women's Active Metabolism:

A complete multivitamin for women with more† to help support your metabolism and physical energy.*

†Compared to One A Day® Essential

- One A Day Cholesterol Plus:

A complete multivitamin that helps maintain healthy cholesterol and blood pressure levels.*††

††Cholesterol and blood pressure levels already within the normal range

- One A Day Energy

A complete multivitamin plus more† to support mental alertness and an energetic feeling.*

†Compared to One A Day® Essential

- One A Day Maximum:

A complete multivitamin that helps maintain your natural defense and immunity while converting food to physical and mental energy.*

- One A Day Essential:

A complete multivitamin formulated to help support heart health, immunity, eye health and physical and mental energy.*

- One A Day Teen Advantage for Him:

A complete multivitamin that contains key ingredients to help address the top health concerns of moms and teens.

- One A Day Teen Advantage for Her:

A complete multivitamin that contains key ingredients to help address the top health concerns of moms and teens.

- One A Day VitaCraves Gummies:

Complete adult multivitamins plus energy and immunity support in fruit flavored gummies.*

- One A Day VitaCraves Sour Gummies:

Complete adult multivitamins plus energy and immunity support in sour fruit flavored gummies.*

*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, What’s Your One A Day?

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Q. What is the difference among formulas?

A. For more information about a specific One A Day formula, please see the product descriptions in the "What formula should I use?" section 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, What‘s Your One A Day?

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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, What’s Your One A Day?

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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.

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

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

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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.

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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.

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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.

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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%
Men's Pro Edge 3500 IU 3000 IU 86% 500 IU 14%
Women's 50+ Advantage 2500 IU 2000 IU 80% 500 IU 20%
Menopause Formula 2500 IU 2000 IU 80% 500 IU 20%
Men's 50+ Advantage 2500 IU 2000 IU 80% 500 IU 20%
Women's Prenatal 4000 IU 2000 IU 50% 2000 IU 50%
Women's Active Mind & Body 2500 IU 2250 IU 90% 250 IU 10%
Women's Active Metabolism 2500 IU 1750 IU 70% 750 IU 30%
Cholesterol Plus 2500 IU 1750 IU 70% 750 IU 30%
Energy 3500 IU 2100 IU 60% 1400 IU 40%
Maximum 2500 IU 2000 IU 80% 500 IU 20%
Essential 3000 IU 2500 IU 83% 500 IU 17%
Teen Advantage for Him 2500 IU 2000 IU 80% 500 IU 20%
Teen Advantage for Her 2500 IU 2000 IU 80% 500 IU 20%
VitaCraves Gummies 4000 IU 4000 IU 100% N/A N/A
VitaCraves Sour Gummies 4000 IU 4000 IU 100% N/A N/A
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, Energy, Energy Advantage2O and Woman's Active Mind & Body may be used by persons 12 years of age and older. Additionally, One A Day has specific products for teens.

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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.

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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.

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

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

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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.

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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.

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Q. Does One A Day have products specifically designed for teens?

A. One A Day Teen Advantage products are gender specific and contain key ingredients to help address the top health concerns of moms and teens.

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Q. What is the ingredient DHA in One A Day Women's Prenatal? As a pregnant woman or a woman thinking of
     becoming pregnant, why do I need it?

A. DHA (docosahexaenoic acid) is an Omega-3 fatty acid found naturally in fish such as tuna and salmon. It is a major structural fat in your baby's brain and the retina of your baby's eyes. As many pregnant women are advised to limit the intake of fish, supplementing your diet with DHA can help support fetal brain and eye development.

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Q. Is it safe to take One A Day Women's Prenatal over-the-counter? Why don't I need a prescription?

A. Yes, it is safe for most women to take One A Day Women's Prenatal. See the product page for specific warnings and allergy statements. One A Day Women's Prenatal includes 800mcg of Folic Acid (100% of the recommended Daily Value for pregnant women). Prescription products include 1,000 or more mcg of Folic Acid. Inform your doctor if you are taking One A Day Women's Prenatal.

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Q. When should I start taking One A Day Women's Prenatal? When should I stop?

A. The benefits of a prenatal multivitamin generally begin at conception or in the very early stages of pregnancy. Prenatal vitamin use, then, is commonly recommended to start before trying to become pregnant. Also, because pregnancy is sometimes unplanned, some sources recommend extra folic acid intake 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.

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Q. Do both pills in One A Day Women's Prenatal need to be taken at the same time?

A. No, you may take the pills together or at different times of the day with food.

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Q. Why is there less calcium in One A Day Women's Prenatal than in One A Day Women's? Do I need to take a
     separate calcium supplement?

A. The recommended Daily Value of calcium for a woman increases when she is pregnant from 1,000mg to 1,300mg. This level would be too large to swallow if included in a complete multivitamin tablet. Women who are pregnant may supplement their dietary calcium intake with separate calcium supplements, such as Citracal®. Inform your doctor if you are taking a supplement.


Visit Citracal

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Q. Are there benefits to taking One A Day Prenatal while breast-feeding?

A. Yes, if you are breast-feeding, the DHA in One A Day Prenatal can be passed from mother to baby in breast milk. DHA helps support brain and eye development in your growing baby.

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Q. Is One A Day Women’s Active Metabolism safe?

A. Yes, when used according to the label. The health of our consumers is our top priority. The safety of each of our formulas is carefully evaluated.

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Q. Will this product help control my weight?

A. No. This is a multivitamin supplement to support your metabolism and help you feel energized. It is one thing you can do as part of a healthy lifestyle that includes a balanced diet and exercise.

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Q. How does Women’s Active Metabolism differ from weight loss products like Dexatrim and Metabolife?

A. One A Day Women’s Active Metabolism is not a weight control product. One A Day Women’s Active Metabolism is a complete multivitamin specially formulated with 100% or more of key vitamins and minerals. Women’s Active Metabolism is a way to get metabolism support and should be used as part of a healthy lifestyle that includes a balanced diet and exercise. Weight loss products, on the other hand, are designed to deliver weight loss results. As a result, they may contain ingredients, such as ephedra or ma huang. At the same time, these products only provide a few nutrients and at low % Daily Value levels so consumers may not get the vitamins and minerals they need, which is particularly important when they are watching their weight.

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Q. Does this product contain caffeine?

A. Yes, One A Day Women’s Active Metabolism contains caffeine and Guarana, a natural source of caffeine. Each serving contains about as much caffeine as one cup of coffee.

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Q. Does this product contain ephedra?

A. No. One A Day Women’s Active Metabolism does not contain ephedra or any other ephedra-based ingredient, such as ma huang.

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Q. Can I use this product with my medication?

A. We recommend that you consult with your physician before using any One A Day product if you are taking medication.

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Q. Can I take One A Day Women’s Active Metabolism with another multivitamin?

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

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Q. Can a teenager use this product?

A. This product is designed for women 18 years of age and older. One A Day offers a product for Teens.

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Q. Can I take this product if I am pregnant or breast-feeding?

A. Do not use this product if you are pregnant or breast-feeding.

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