All of the movements of our body involve the use of our joints. Joints connect bones together to allow movement and flexibility, and are held together by tendons, ligaments, and other connective tissues. Some connective tissues cushion joints and bones against friction, and others support internal organs, attach muscle to bone, and form the walls of blood vessels. Joint conditions, such as arthritis which results in painful and swollen joints, affect a majority of Americans by the age of 70. In order to protect against joint and connective tissue problems, we need to be able to continually produce new connective tissue to avoid the wear and tear which leads to inflammation and tissue deterioration. Nutrients such as glucosamine sulfate, sulfur, chondroitin, mangansese, zinc, and vitamin C are an important part of building healthy connective tissues throughout the body.