Dietary Protein Increases urinary Calcium
An increase in dietary protein has been shown by
several investigators to increase urinary losses of cal
cium, resulting in negative calcium balance (1-7). This
has been reviewed in detail by Yuen et al. (8). However,
Spencer and colleagues have observed that a high pro
tein diet has little effect on urinary calcium excretion,
and they attributed this to the phosphorus content of
the diet (9-11). Recently, they concluded that com
monly used complex proteins, which have a high phos
phorus content, do not cause urinary calcium loss in
adult humans (12). Because excess urinary calcium and
negative calcium balance are thought to result in an
increased risk for osteoporosis and nephrolithiasis, it is
important to address this discrepancy of opinion.
Tidak ada komentar:
Posting Komentar