Combined supplementation with chondroitin sulphate and glucosamine could help to reduce knee joint pain, stiffness, and functional disability of people with osteoarthritis, according to new research published in the top rheumatology journal: Annals of the Rheumatic Diseases.

Increased intake of magnesium from dietary sources or from supplements is associated with significantly healthier knees, including improvements like thicker cartilage. But many people lack magnesium and that most likely helps explain the widespread problems with knee osteoarthritis, according to a study that is published in the journal Nutrients. If you already have osteoarthritis, taking pharmaceutical-grade glucosamine may help.