‘Joint Juice’ Maker Says Consumer Failed to Prove Case at Trial

Joint Juice maker Premier Nutrition Corp. told a federal court in California that it’s entitled to judgment in a class trial, saying a New York consumer failed to prove her claims that it deceptively marketed a glucosamine supplement.

Mary Beth Montera and others allege they bought the product for the joint-health benefits that Premier advertised. They say they overpaid because glucosamine can’t deliver on its promises to relieve joint pain or help with flexibility and mobility.

She didn’t establish that the challenged representations are false or misleading, the Post Holdings Inc. unit said Thursday in a motion for judgment as ...