Soothes achy joints. Benefits joint health. For healthier joint function. These are some of the claims touted by joint-health products on today’s retail shelves.
In the United States, Flexamin Triple Strength and Flexamin Complete, dietary supplements from Arthritis Research Corp., Ronkonkoma, N.Y., claim to soothe achy joints with the joint-health ingredients glucosamine, chondroitin, and methylsulfonylmethane, as well as hyaluronic acid. And Joint Juice, a combination of 1,500 mg of glucosamine…