Fig. 5.

Influence of phosphate on the urinary (A) and balance (B) of Ca in healthy adults. Results from a meta-analysis of intervention studies indicate that higher phosphate intakes were associated with decreased urine Ca (A) and increased Ca retention (B). The change in slope was not different whether the Ca intake was low (dotted regression line) or high (continuous regression line), indicating the absence of interaction in relation with the amount of dietary Ca. Adapted from Fenton et al. [66].