[Effect of qualitatively varying nutrition on the protein metabolic indices of young men during exams].

Protein nutrition was corrected in young males (19-20 years) during examinations: the quota of animal protein was increased by 50% at the expense of milk protein which comprised 50% of animal proteins, as compared to 15% in routine diets, the protein consumption being 0.55 g/100 kcal (4184 kJ)/kg bw, assimilability was 91.8%. The protein correction promoted the maintaining of the nitrogenous equilibrium. However, the levels of urea excretion and urea coefficient were significantly higher than those observed during current studies. The results of the investigation evidence that 110 g protein is a minimum requirement during the examination stress, the assimilability is to be 91-92%, with the energy value of diets comprising 3000 kcal (or 0.55 g protein/1000 kcal/kg bw). A maximum protein value necessary for such contingent during examinations could be 125 g/3000 kcal/day, assimilability being 91-92%, or 0.62 g protein/1000 kcal/kg bw.