The article presents basic information about the role and structure of cartilage tissue and its components, the impact of an imbalance in the structure of nutrition on the well-being of the joints, evidence of the symptomatic and structural-modifying effect of chondroitin and glucosamine in the composition of original drugs and dietary supplements in the treatment of osteoarthritis. Particular attention is paid to the structure and synthesis of collagen, its biological role in the body in the formation of the cell structure of various tissues, especially cartilage. Found 28 types of collagen, differing in amino acid sequence and degree of modification, which are encoded by more than 40 genes. It was noted that the activity of enzymes involved in the synthesis of collagen depends on sufficient intake of products containing ascorbic acid (vitamin C), and the degradation and decrease in the amount of collagen is associated with the development and progression of osteoarthritis and other diseases of the musculoskeletal system. The use of type 2 collagen, including in combination with chondroitin and glucosamine, is considered as a promising method for preventing joint problems. It is emphasized that the main substances necessary for the syn thesis of cartilage components come from food. An imbalance in the structure of nutrition (reducing the consumption of proteins, microelements and vitamins, excessive consumption of fats and carbohydrates) negatively affects the state of the connective tissue and causes problems for all structures that form the joint. One way to correct eating behavior and replenish essential deficiencies is through the use of vitamin-mineral complexes and dietary supplements, which are gaining interest in the medical community as evidence accumulates for their effectiveness in supporting joint well-being.