Bayer has been asked to rein in claims that its One A Day Men’s Pre-Conception Health Complete Multivitamin can help boost male fertility after a rival company challenged the German pharma’s marketing push.
The request came from the BBB National Programs’ National Advertising Division, a voluntary, non-regulatory body that helps settle advertising disputes.
OLLY PBC, which markets a rival multivitamin to Bayer, brought its case to the NAD challenging Bayer’s claims.
These claims include that its multivitamin supports healthy sperm and contains “powerful” antioxidants, including lycopene, as well as Bayer’s use of the term “complete multivitamin,” according to a March 31 statement from the NAD.
The NAD found that ingredient testing “did not support the challenged claims and recommended that Bayer discontinue or modify these claims.”
Bayer, in a separate statement to the NAD, said it would comply with the organization’s recommendations.
This comes just one week after Bayer tapped U.S. rapper and actor Ludacris to front its new campaign for its One A Day multivitamin brand.
Bayer also recently consolidated all of its consumer health division’s creative, production and media work under a single agency partner, Interpublic Group.
The Big Pharma touts the business—which is responsible for popular over-the-counter brands such as Aspirin and Claritin—as the third-biggest consumer health company in the world. In its full-year 2025 earnings report (PDF) issued earlier this year, Bayer tallied steady year-over-year sales in its consumer health division, though sales in the nutritionals segment dipped about 4%.