One A Day

Founded 1940 · Whippany, New Jersey, United States · 42 products · oneaday.com

78
Brand Score

Certifications

2 certifications
Consumerlab Verified Source
Nsf Gmp Verified Source

Violation History

5 incidents
Lawsuit Misleading consumers by marketing 'One A Day' vitamin gummies that require two gummies per serving.2022Source
Lawsuit Falsely labeling 'Natural Fruit Bites Multivitamin' as natural when it contains synthetic ingredients.2019Source
Fda Warning Violations of current good manufacturing practice (CGMP) regulations for finished pharmaceuticals, including inadequate written procedures for cleaning and maintenance of equipment and inadequate investigations into product-quality complaints.2017-11-14Source
Lawsuit Deceptively marketing One A Day vitamins with unsupported claims about supporting heart health, immunity, and physical energy.2014Source
Fda Warning Deviations from cGMP in the manufacture of nonsterile Active Pharmaceutical Ingredients (APIs), including averaging of out-of-specification and within-specification analytical test results.2009-08-05Source
Products by One A Day
Skin Radiance
Skin Radiance
Product 91 Brand 78
Frequently Asked Questions
Is One A Day a trustworthy supplement brand?

One A Day receives a brand trust score of 78/100 in GoodSupp's independent analysis. The company was founded in 1940 and is headquartered in Whippany, New Jersey, United States. They hold 2 verified certifications including Consumerlab, Nsf Gmp. These certifications are independently verified by GoodSupp and indicate the brand meets recognized quality, purity, and manufacturing standards. Note: One A Day has 5 historical regulatory incidents on record. These are factored into the overall trust score and are detailed in the violation history section above.

Is One A Day third-party tested?

Yes. One A Day holds 2 verified third-party certifications: Consumerlab, Nsf Gmp. Third-party testing means an independent laboratory — not the supplement company itself — has verified the product's contents, purity, and/or manufacturing practices. This is one of the strongest indicators of supplement quality because it removes the conflict of interest inherent in self-testing. Not all certifications are equal: NSF International and USP are considered the gold standard, while GMP certification indicates proper manufacturing practices.

What are the best One A Day supplements?

Based on GoodSupp's quality analysis, the highest-rated One A Day supplements are: Skin Radiance (score: 91/100). These scores are calculated from ingredient quality, dosage adequacy, bioavailability, label transparency, and inactive ingredient safety. Scores can vary significantly across a brand's product line — a high brand trust score doesn't guarantee every individual product is top-quality.

Where is One A Day located?

One A Day is headquartered in Whippany, New Jersey, United States. The company was founded in 1940. They currently offer 42 products in their supplement lineup. Their official website is oneaday.com. Manufacturing location may differ from corporate headquarters — look for GMP certification to verify manufacturing quality standards.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.