Urinary nitrogen in elderly Indians.

Urinary volumes, nitrogenous consituents eliminated in 24 hrs urine and diet taken by healthy elderly lactovegetarian Indian subjects in Bombay are reported. The average values where: diet = 1603 calories, 52.3 gms proteins intake per day; urinary volume 1568 cc, urea 11.27 +/- 3.59 gms/24 hrs, creatinine 1.09 +/- 0.8 gms, uric acid 0.56 +/- 0.21 gms and ammonia 0.38 +/- 0.25 gms per day. While the values of all N2 constituents-urea, creatinine, uric acid and ammonia are much lower, the total N2 as well as urea output in elderly Indians in less than half of that of the young Europeans on meat rich diet but greater than those on protein free diets.