MSM

MSM (methylsulfonylmethane) is a naturally occurring sulphur compound found in plants, animals and humans. It is added to dog food as a joint support ingredient, often alongside glucosamine and chondroitin, as sulphur is an important component of cartilage and connective tissue. Some studies suggest MSM may help reduce joint inflammation and pain. While it is considered safe for dogs, the evidence base for its efficacy at the levels used in pet food is limited.