Yak bone is the most nutritionally rich substance in a yak's body. Yak bone marrow is a traditional nutritious food among the Tibetan people in China. Yak bone oligopeptides are rich in nutrients such as protein, calcium, chondroitin, lecithin, and various vitamins, and have extremely high nutritional value. Yak bone oligopeptides also contain a variety of amino acids, including essential amino acids that cannot be synthesized in the human body, and have the functions of supplementing the body's nutritional components and improving immunity. In particular, they contain ossein and chondroitin that prevent human aging, and the ratio of calcium to phosphorus is reasonable, making it easy for the human body to digest and absorb.