Integumentary loss of calcium

Publisher Website
Google Scholar
Abstract
Integumentary Ca loss was studied in 16 healthy young men. The daily loss by the 16 ambulatory but relatively sedentary young men in 52 determinations of 6 day periods each was 8.7 .+-. 1.9 mg/m2 per day (average 15.8 mg/man per day). The amount lost was not influenced by Ca intake (0.1 to 2.3 g/day). In contrast to urinary Ca excretion, which is directly related to protein intake, there was no significant change in integumentary Ca loss with varying protein intakes (1-96 g N/day). No compensatory relationship between urinary and integumentary Ca excretion was noted. During strenuous exercise Ca loss increased to an average of 25 mg in 40 min. There was no compensatory decrease in urinary excretion on the day of strenuous exercise. It was also noted that integumentary Ca loss was not affected by general Ca balance.