Consumer Class Action

Did You Buy Optimum Nutrition Serious Mass?

A proposed class action claims Optimum Nutrition Serious Mass weight-gainer products were marketed as premium sports nutrition supplements while failing to disclose the presence or risk of heavy metals, including cadmium and inorganic arsenic.

If you purchased the product for personal use, you may be eligible to seek compensation. Checking takes about 2 minutes.

CadmiumInorganic arsenicUndisclosed heavy metals

Check Your Eligibility for Compensation

Answer a few quick questions. Free and confidential — about 2 minutes.

Did you buy Optimum Nutrition Serious Mass?
Do you still have proof of purchase, the container, or an order history?

Your answers help us check whether you may be eligible for compensation.

By submitting, you agree to be contacted by phone, text, and email about your potential claim. Submitting this form does not create an attorney-client relationship.

What the lawsuit alleges

The proposed class action alleges that consumers paid premium prices for Optimum Nutrition Serious Mass without being told the products may contain — or carry a risk of — heavy metals such as cadmium and inorganic arsenic. Had that been disclosed, the lawsuit alleges, purchasers would have paid less or not bought the product at all.

Check If You Qualify

You may be eligible for compensation if

  • You purchased Optimum Nutrition Serious Mass
  • It was for personal use (not resale)
  • You can confirm the purchase (receipt, container, or order history helps)

Attorney Advertising

FURIA LAW

Furia Law, LLC
880 Third Avenue, 5th Floor
New York, NY 10022

(646) 830-1915

info@furiafirm.com

Attorney Advertising. This website is an advertisement for legal services. Furia Law, LLC is responsible for this advertisement; responsible attorney: Philip J. Furia. Principal office: 880 Third Avenue, 5th Floor, New York, NY 10022. The information on this page is for general informational purposes only and is not legal advice. No attorney-client relationship is created by viewing this page or by submitting information; an attorney-client relationship is formed only through a written agreement signed by you and the firm. Prior results do not guarantee a similar outcome, and no result is guaranteed. Eligibility depends on the facts of each person’s purchase. This page is not affiliated with, sponsored by, or endorsed by Optimum Nutrition or its parent or affiliated companies; that name is used only to identify the products at issue.

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