One A Day

Name: One A Day
Brand: Bayer
SKU: 7228
Availability: InStock

Type

Product

Manufacturer

Country

Dosage

Qty-Price (USD)

Type:

Product: One A Day 50+ Mens Formula

Manufacturer: Bayer

Country: Canada

Dosage: 90 tab

Qty-Price (USD):

Type:

Product: One A Day 50+ Womens Formula

Manufacturer: Bayer

Country: Canada

Dosage: 90 tab

Qty-Price (USD):

Type:

Product: One A Day Femplus

Manufacturer: Bayer

Country: Canada

Dosage: 90 tab

Qty-Price (USD):

Type:

Product: One A Day Mens Formula

Manufacturer: Bayer

Country: Canada

Dosage: 90 tab

Qty-Price (USD):

Type:

Product: One A Day Weight Smart

Manufacturer: Bayer

Country: Canada

Dosage: 90 tab

Qty-Price (USD):

Type:

Product: One A Day Womens Formula

Manufacturer: Bayer

Country: Canada

Dosage: 115 tab

Qty-Price (USD):

Generic Equivalent of One A Day

Type

Product

Manufacturer

Country

Dosage

Qty-Price (USD)

There is no generic product of One A Day.

One A Day Information

One A Day at CanadaPharmacyOnline.com

Brand One A Day is manufactured by Bayer and is available in many countries worldwide, including Canada. There is no generic for this product.

Dosage:

Brand One A Day is commonly available in different formulas, including 90 tab Men's formula, 90 tab and 115 tab Women's formula, 90 tab Femplus, and 90 tab Weight Smart.

Always take as directed on the product label. Consult your doctor or pharmacist for personalized guidance and safe use.

Usage:

One A Day is an over-the-counter product designed to meet the unique nutritional needs of different genders and age groups. For women, the formulas typically include higher amounts of iron to replace what's lost during menstruation and folic acid to support reproductive health and fetal development. They also provide calcium and vitamin D, both essential for maintaining strong bones and preventing bone density loss. For men, the products usually contain little to no iron, since men generally need less of it, and excess iron can be harmful. Instead, they feature higher levels of zinc, which supports immune health and reproductive function, as well as B vitamins to help boost energy metabolism and overall vitality.

Mechanism of Action:
One A Day is a multivitamin that helps fill nutritional gaps in your diet by providing essential vitamins and minerals that the body needs for overall health and daily function. These nutrients act as vital cofactors in many biochemical processes that support overall health. By providing a balanced combination of micronutrients, the supplement helps strengthen your immune system, boost energy production, and maintain healthy bones and heart function.

Take One A Day following the instructions on the manufacturer's website. Consult your doctor for personalized guidance and safe use.

The information below summarizes some, but not all, potential side effects, risks, and interactions. Before taking One A Day, it is essential to discuss all possible side effects, risks, and interactions with your doctor or pharmacist.

Side Effects:

The information below outlines potential side effects associated with One A Day (One A Day). It is not an exhaustive list, and individual reactions can vary. This information is for educational purposes and should not replace professional medical advice. Before starting One A Day, it is crucial to discuss possible side effects and risks with your doctor or pharmacist.

Common side effects - The following are some common side effects of One A Day; others may occur. Contact your doctor promptly if any side effects persist, worsen, or concern you, or if you experience any other concerning symptoms.
• Constipation;
• Mild nausea;
• Unpleasant taste in the mouth;
• Upset stomach

Serious or rare side effects- Seek immediate medical attention or call emergency services if you experience any of the following:
• Severe allergic reaction – symptoms include rash, itching, swelling, dizziness, or difficulty breathing.
• Vitamin toxicity - Excessive intake of fat-soluble vitamins can build up in the body and cause harmful effects.

Contraindications:

The following is not an exhaustive list of contraindications. Before starting One A Day, it is crucial to discuss all your medical conditions, past and present, and all medications you are taking with your doctor or pharmacist.

One A Day should not be used if:
• You have a history of vitamin or mineral toxicity.
• You have a known allergy to One A Day or any of the ingredients in the medication.
• You have metabolic disorders like hemochromatosis (iron overload) or Wilson's disease (copper overload).

Tell your doctor about all of your medical conditions, past and present, before starting One A Day. This is crucial because certain conditions can affect whether One A Day is right for you. These conditions may include, but are not limited to:
• Bleeding or clotting disorders;
• Kidney disease;
• Liver disease;
• Thyroid problems

Drug Interactions:

Before taking One A Day, it is essential to discuss all potential risks and interactions with your doctor or pharmacist. For complete and up-to-date information, refer to the manufacturer's website.

Provide your doctor with a complete list of all your medications, including prescriptions, over-the-counter (OTC) drugs, vitamins, and herbal supplements. It is also essential to inform your doctor about any herbal teas, recreational drugs, or significant dietary changes you are making, as these could potentially interact with One A Day. One A Day may interact with other medicines, but is not limited to:
• Antacids and proton pump inhibitors - These can affect the absorption of Vitamin B12 and other nutrients.
• Antibiotics like tetracyclines and fluoroquinolones - Minerals such as calcium, magnesium, iron, and zinc can bind to these antibiotics and reduce their absorption.
• Diuretics like water pills - Certain diuretics can increase the loss or buildup of minerals like potassium, magnesium, or calcium, leading to imbalances.
• Thyroid medications like levothyroxine, calcium, and iron can interfere with thyroid hormone absorption; take them at least 4 hours apart.

Pregnancy and Breastfeeding:
When you're pregnant or planning to become pregnant, it's important to tell your doctor before continuing with One A Day. Although it contains essential nutrients, the doctor will need to evaluate whether it meets your specific needs during pregnancy. If you are breastfeeding, you should also consult your doctor to understand any risks to your baby, since vitamins and minerals from multivitamins can pass into breast milk.

Frequently Asked Questions about One A Day at Canada Pharmacy Online:

Why is One A Day more affordable in Canada than in the United States?

Multivitamin and supplement prices, including One A Day, are generally lower in Canada than in the U.S. due to a combination of factors, primarily government price regulations, differing market dynamics, and other economic considerations. In Canada, provincial and federal governments negotiate drug prices with pharmaceutical companies, which often results in lower costs compared to the U.S., where market forces play a more significant role. For more information, see the FAQs on Prescription Drug Importation from the Kaiser Family Foundation (KFF): https://www.kff.org/health-costs/issue-brief/faqs-on-prescription-drug-importation/

How much is the shipping?

Our shipping fee is a flat rate of $10.00 per order. Our pharmacy is committed to offering you the lowest prices on high-quality products.

How do I place an order with your pharmacy?

Ordering from us is very simple. You can purchase online or call Customer Service at 1866.920.3784; for more information or to learn about the ordering process, visit our How to Order page.

Is there a limit on the number of tablets I can order at one time?

CanadaPharmacyOnline.com can only dispense a maximum of a three-month supply of One A Day at a time for personal use.

Can I buy over the counter from you?

Yes, One A Day does not require a prescription from your doctor. We sell this product without a prescription.

Do you ship to the United States?

Yes, we do. It typically takes 7-18 business days to receive your order from our pharmacy.

Can I take One A Day with food or on an empty stomach?

It's recommended to take it with food. Taking a multivitamin with a meal can improve absorption and reduce the chance of stomach upset.

Blog Post

8 Health Benefits of Sunlife Multivitamin That Will Surprise You
Gastroparesis: Dietary Tips to Reverse Your Life

Latest News

One A Day® Launches First-of-Its-Kind Multivitamin Gummy with Iron to Help Fill Nutrient Gaps in Kids (published on Jul 23, 2025)

Similar Drugs in the category of Vitamin Supplements:

Nutrazul Vitamin B12 Injection Centrum FeraMAX Vitamin B6 Injection

The information on this page is sourced from independent third parties contracted by CanadaPharmacyOnline. While we cannot guarantee its medical accuracy, we strongly recommend consulting a healthcare professional for personalized advice regarding medications or medical conditions.

Reviews From Real Customers