One A Day

One A Day is a leading global brand of multivitamin supplements, currently operating as a core part of Bayer's Consumer Health division. Originally launched in 1940 by Miles Laboratories, the brand pioneered the concept of a single daily tablet to meet essential nutritional requirements. Today, the portfolio includes a wide range of specialized formulations designed for specific demographics, including gender-specific multivitamins, prenatal supplements, and age-targeted products for seniors. The brand focuses on addressing common micronutrient gaps and supporting various health areas such as bone density, heart health, and immune function. One A Day products are widely distributed through major retail and pharmaceutical channels, maintaining a significant presence in the over-the-counter wellness market. The brand continues to innovate with new delivery formats, such as gummies and fruit bites, to meet evolving consumer preferences.