Edited by: Top Class Actions  |  March 25, 2025

Category: Consumer News
A view of a hand holding a package of Cosamin DS capsules, on display at a local big box grocery store.
(Photo Credit: The Image Party/Shutterstock)

Nutramax class action lawsuit overview:

  • Who: Plaintiff Amy Lynn Stewart filed a class action lawsuit against Nutramax Laboratories Consumer Care Inc.
  • Why: Stewart claims Nutramax falsely advertises its Cosamin joint pain supplements as being able to provide relief from joint pain.
  • Where: The Nutramax class action was filed in Florida federal court.

A new class action lawsuit alleges Nutramax Laboratories Consumer Care Inc. falsely advertises its Cosamin joint pain supplements as being able to provide relief from joint pain.

Plaintiff Amy Lynn Stewart claims Nutramax falsely advertises its Cosamin DS, Cosamin ASU, Cosamin Sport and Cosamin Muscle & Joint supplements as being able to provide joint comfort and relief from pain.

Stewart argues Nutramax misled consumers into paying a premium for the Cosamin supplements by claiming they are “scientifically proven” to help promote joint comfort by protecting cartilage.

“These claims are false and misleading,” the Nutramax class action says.

Stewart wants to represent a nationwide class and Florida subclass of consumers who purchased the Cosamin supplements.

Benefits of Cosamin supplements not supported by science, class action says

Stewart claims Nutramax knew or should have known that its Cosamin supplements were falsely advertised as being able to provide relief for joint pain.

“Defendant’s representations concerning the Products are unfair, unlawful and fraudulent and have the tendency or capacity to deceive or confuse reasonable consumers,” the Nutramax class action states.

Stewart accuses Nutramax of violating the Florida Deceptive and Unfair Trade Practices Act. She demands a jury trial and requests declaratory and injunctive relief and an award of compensatory, statutory and punitive damages for herself and all class members.

In 2013, a federal panel centralized three class action lawsuits accusing Nutramax of falsely advertising the benefits of its Cosamin DS and Cosamin ASU, which contain glucosamine and chondroitin.

Have you purchased any of Nutramax’s Cosamin joint pain supplements? Let us know in the comments.

The plaintiff is represented by William Wright and Kelly Mata of The Wright Law Office P.A.

The Nutramax class action lawsuit is Stewart v. Nutramax Laboratories Consumer Care Inc., Case No. 6:25-cv-00253, in the United States District Court for the Middle District of Florida, Orlando Division.


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23 thoughts onNutramax class action alleges Cosamin supplements falsely advertised

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