Looking for a formula with muscle and joint support? Try Nature Made Glucosamine Chondroitin Complex with MSM. popularly known as Triple Flex. plus D3. This Triple Strength supplement contains 1500 mg Glucosamine to help support healthy joint cartilage. 800 mg Chondroitin to help support joint cushioning. and 750 mg MSM. a source of dietary sulfur. Plus. 50 mcg (2000 IU) Vitamin D3 to support muscle and bone health. All in two daily caplets.