Live an active and healthy lifestyle with Nature made TripleFlex Vitamin D3 2000 IU. Vitamin D3 IU combines with TripleFlex's other key nutrients to replenish, renew and maintain your long-term joint and muscle health. Glucosamine 1500 mgA natural compound that is a building block for cartilage that maintains the structural integrity you need for long term joint health. Chondroitin 800 mgChondtroitin keeps your joints moving smoothly by improving joint lubrication. MSM 750 mgProvides the sulfur your body needs so chondroitin can work to promote cartilage health and joint flexibility. Vitamin D3 2000 IUVitamin D supports joint and muscle health.