Why Choose One A Day® Vitamins

Nutritional support you can feel good about — from supportive health benefits to the taste. As part of a
healthy lifestyle, taking One A Day® multivitamins is another thing you can do to be your best you.



Multivitamins Specially for You

Let’s face it, men and women are different. Grandparents and teens are different. Our nutritional needs change as we move through this amazing journey we call life.

One A Day® is a multivitamin brand with uniquely formulated products for your family. From prenatal to 65+, we offer many complete multivitamins for different ages, genders and health goals.

    A Legacy of Nutritional Science

    We’ve been leading vitamin innovations for over 75 years — and we’re not stopping any time soon. We believe that health is the key to accessing a better version of ourselves. That’s why we start with quality ingredients and continuously update our formulas to reflect the latest science

    Quality That Stands Up to 100+ Tests

    We’re tough critics when it comes to quality. Our multivitamins are put through over 100 rigorous quality checks to ensure things like consistency and accuracy. We’re committed to providing you with the nutrients you may need at the best quality we can provide.

    Formulas Designed by Experts

    To create our multivitamins, our experienced team of researchers, scientists and brand enthusiasts work together to identify the top health concerns and desires for specific groups. We research important dietary nutrients in developing our unique formulas.

    Good Stuff You Want,
    Not Stuff You Don’t

    Our goal is to formulate every one of our multivitamins with good stuff you want and keep them free of stuff you don’t. That’s why we’re updating our packaging to highlight stuff you don’t want. Look for the following “Free Of” icons on select products.


    Free Of:

    no artificial flavors

    Artificial Flavors

    no artificial sweeteners

    Artificial Sweeteners


    Synthetic Colors

    no-shfcs icon

    High Fructose
    Corn Syrup


    Diary(Milk) Allergen



    No wheat

    Wheat Allergen


    Egg Allergen


    Soy Allergen


    Shellfish Allergens

    Meet One Of Our Own

    women smiling in front of orange one a day® logo

    Nastaran Faghihnia, Ph.D.


    As one of the people responsible for developing the unique One A Day® formulations, I put my Ph.D. in Integrative Biology to work each and every day. I partner with product development, marketing and regulatory to make sure we are putting the best formulas out there. It’s so exciting when I get to see my efforts result in real products that help people.

    Collaboration is one of the best things about my job. My colleagues consistently seek me out to learn about our formulas and I’m happy to share my knowledge about nutrition with them. In fact, one of my favorite pastimes is teaching courses on human nutrition, exercise physiology and anatomy at renowned universities. From a young age, I knew that I was passionate about human health and wanted to build my career around it. That’s why I’m so proud and excited to do what I do at Bayer.

    As a mother of three, my go-to multivitamin is One A Day® Prenatal 1.


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