Weider Glucosamine + Chondroitin stimulates the forming process of joint fluid, stops cartilage dismantling The nutrient Glucosamine is a combination of sugar & amino acids. Since this nutrient is a intregal part the synovial fluid (joint fluid), it can contribute to the joint health. Unlike other organs joints don't have veins & have to absorb their nutrients from their surrounding (joint fluid). The joint fluid serves as buffer between the cartilage surfaces. With too little joint fluid, the cartilage surfaces rub one another generating pain. In our body, Chondroitin is used as building blocks for larger structures called Proteo glycane. Their task is to form & cultivate connective tissue like cartilages.