Bayer Settled Class Action Over Vitamin Marketing
The company reached an agreement after allegations that its One A Day men's health vitamins made false sperm health claims.
Updated on Sept. 21, 2026 in Nutrition
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Bayer has settled a class action lawsuit in a New York federal court regarding misleading marketing for its One A Day Men's Pre-Conception Health Multivitamins. The suit alleged the company falsely claimed the product supported healthy sperm.
Why it matters
The settlement follows concerns about the scientific basis for dietary supplement marketing, as consumers alleged they purchased products that failed to deliver promised benefits. This case highlights the legal risks corporations face when promotional claims on packaging are not supported by evidence.
The lawsuit sought $500 in damages per violation after plaintiffs alleged the product failed to perform as advertised. The precise financial value of the total settlement remains under investigation.
The players
Bayer
Bayer is a multinational pharmaceutical and life sciences company known for producing healthcare products, agricultural chemicals, and seeds.
National Advertising Division
The National Advertising Division is a self-regulatory body that reviews truth and accuracy in national advertising to protect consumers.
The details
Bayer marketed the supplement featuring ingredients like vitamins C and E, selenium, zinc, and lycopene with the phrase To Support Healthy Sperm. The company had instructed users to take the vitamins for at least three months prior to conception, despite the National Advertising Division finding these claims unsupported in March 2026.
Timeline
In March 2026, the National Advertising Division found the marketing claims unsupported.
On September 18, 2026, attorneys informed the federal court of the settlement agreement.
The Big Picture
This case follows a pattern established by New York consumer-protection law, which provides a framework for litigation against companies accused of deceptive marketing practices. It highlights how state-level statutes are frequently used to hold manufacturers accountable for claims made on dietary supplement packaging.
This settlement serves as a reminder for consumers to critically evaluate marketing claims on supplements that promise specific reproductive health outcomes. Users should consult with healthcare providers for evidence-based medical advice rather than relying solely on product packaging instructions.
The takeaway
Consumers should be cautious of health claims on supplements that lack clinical backing or regulatory verification. Maintaining transparency in labeling is essential for building trust in the consumer healthcare market.
Further reading
For more on industry oversight, see our Nutrition section.
Source note: This article includes information reported by Legal Newsline.
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Should companies face stricter penalties for marketing health supplements with claims later found to be unsupported?
