This invention relates to a hydrolysate of avian cartilage comprising 45% to 70% by weight of hydrolysed type II collagen, 9% to 15% by weight of chondroitin sulphate, 0.5% to 2% in weight of hyaluronic acid; with a composition of amino acids in which valine represents 2.7% to 3.3%, isoleucine represents 2.0 to 2.4, phenylalanine represents 2.2% to 2.6%, lysine represents 3.8% to 4.2%, tryptophane represents 0.4% to 0,6%, hydroxyproline represents 5.5% to 8.7%, hydroxylysine represents 0.7% to 1.8%, and in which the molar ratio between hydroxyproline and hydroxylysine is between 5.0 and 8.0; and having an average molecular weight of the peptidic fraction between 500 and 1000 Daltons. The invention also relates to a process for preparing said hydrolysate, and its use as a food complement, and/or as a medicament, particularly for treatment or prevention of joint pain.