Now Foods Glucosamine & Chondroitin Extra Strength is a dietary supplement designed for adults who want to supplement their daily diet with nutrients that support . The formula combines three well-known ingredients in one capsule: glucosamine, chondroitin, and MSM (methylsulfonylmethane). Key Features of Now Foods Glucosamine & Chondroitin Extra Strength with MSM A combination of glucosamine, chondroitin and MSM in one preparation. Natural origin glucosamine from crustaceans and chondroitin from bovine cartilage. GMO-free, gluten-free, soy-free product. 240 capsules – enough for 4 months of supplementation. is an organic compound from the group of amino sugars, naturally present in cartilage tissue. The preparation uses glucosamine in the form of potassium glucosamine sulfate , obtained from crustaceans such as crabs, shrimp, lobsters, and crayfish. Chondroitin is a glycosaminoglycan compound that occurs naturally in joint cartilage. The product uses chondroitin sulfate sodium salt , obtained from bovine cartilage. MSM (methylsulfonylmethane) is a source of natural organic sulfur. It is a valuable addition to the formula, as sulfur plays a role in nourishing joint structures.