Collagen (or collagen) is a protein that forms the building blocks of the movement system of the human body, in particular bones, cartilages, fibers and joints. There are about twenty different types of this protein. This difference is due to their molecular structure. In the human body, hydroxy proline is present only in collagen. Almost one percent of collagen tissue 10 is hydroxy proline. Almost half of the collagen found in the human body is found in the bones.

Nutrients that increase collagen in the body are important in terms of keeping the skin healthy. Collagen is an insoluble and fibrous protein that strengthens the skin. Collagen is an important component of the connective tissue of the skin. Collagen occurs naturally in the body, but collagen production decreases in older age depending on age. This adversely affects the firmness and elasticity of the skin. The signs of aging that occur in this way can only be delayed by taking foods that support collagen growth.

The following foods are the leading collagen enhancing foods:

• Nutrients rich in Omega-3 fatty acids, such as nuts, cold-water fish and flaxseed
• Foods such as beans and strawberries that are rich in antioxidants
• Citrus fruit which is rich in vitamin C

The collagen is insoluble in cold water but forms gelatin if boiled in hot water and with aqueous acids and alkalis. Collagen provides strength and tensile strength to the tissues it contains. Collagen also plays an important role in healing wounds.

Hydroxy proline is a modified amino acid resulting from collagen degradation.

Hydroxy proline (collagen) determination studies are carried out in authorized laboratories within the scope of chemical tests. In these studies, the standards published by local and foreign organizations and the test methods accepted worldwide are complied with. In this way, laboratories provide a more reliable and impartial service. One of the standards applied is:

• TS 6236 ISO 3496 Meat and meat products - Determination of hydroxyproline content