主题：骨胶原的英文是什么？ -- 晨枫

Some selling collagen-based dietary supplements claim they improve skin and fingernail quality and aid joint health, but no mainstream scientific research supports these claims. Such loss of health is more likely to be due to things beside protein deficiency, and if it were due to that, other protein sources are better suited for dealing with shortages. Gelatin is still a good source of bulk protein in the diet however, and taking an amino acid blend directly related to the tissue saves the time of manufacturing higher-order amino acids from the baser 8 essential ones.