[Effect of the composition of the diet on the excretion of 3-methylhistidine and creatinine in urine].

3-Methylhistidine in a defined amount of meat, consumed by 7 healthy persons is excreted quantitatively in the urine within 2 days. Simultaneously recorded creatinine excretion remained constant in 4 of the participants while in 3 cases a considerable increase was observed during the day of meat consumption. An increase in nitrogen excretion as a result of meat consumption was observed in 5 out of 7 persons.