'In regard to raw meat propaganda, revent experiments have shown that, taking rapidity of hydrolysis as a criterion, meat, when raw, is in the least digestible condition. The most rapidly digested meat is that which is roasted or grilled until it is just red inside with a moist surface when cut. If the heating is carried beyond this point and the meat is definitely overcooked, the rate of digestion is slowed, but, unless the meat is actually carbonized, it even then appears to be more rapidly digested than raw meat. The decrease of digestibility in overcooked meat appears to be due to hardening and drying of the protein. - Jour. Amer. Med. Assn., June 13, 1931.' [NB: summary rather than direct quote.] (174)