Urine calcium excretion rates were consistent with osteoporosis development ; however calcium balance studies did not demonstrate loss of whole body calcium with higher net acid excretion .
No study revealed a biologic mechanism functioning at physiological pH. Finally , r and omized studies did not provide evidence for an adverse role of phosphate , milk , and grain foods in osteoporosis .
Conclusions A causal association between dietary acid load and osteoporotic bone disease is not supported by evidence and there is no evidence that an alkaline diet is protective of bone health
Background Modern diets have been suggested to increase systemic acid load and net acid excretion .
In response , alkaline diets and products are marketed to avoid or counteract this acid , help the body regulate its pH to prevent and cure disease .
The objective of this systematic review was to evaluate causal relationships between dietary acid load and osteoporosis using Hill 's criteria .
Dietary protein and phosphorus do not affect calcium absorption.
BACKGROUND Variation in absorption efficiency explains more of the variability in calcium balance than does actual calcium intake . Several investigators have suggested that the relatively high phosphorus and protein intakes of the diets of industrialized nations reduce calcium absorption and thereby aggravate the problem of calcium deficiency . OBJECTIVE My objective was to test whether variation in phosphorus and protein intakes is associated with variation in calcium absorption . DESIGN One hundred ninety-one Roman Catholic nuns aged 48.7 + /- 7.0 y were studied approximately 3 times each over a > 20-y period with a full metabolic balance regimen ; controlled , chemically analyzed diets ; and double-tracer measurement of calcium absorption . RESULTS Although the expected associations with absorption were found for age , calcium intake , and estrogen status , no association was observed for intakes of either phosphorus or protein . CONCLUSION Phosphorus and protein intakes do not contribute to the wide variability in calcium absorption efficiency
Urine calcium excretion rates were consistent with osteoporosis development ; however calcium balance studies did not demonstrate loss of whole body calcium with higher net acid excretion .
No study revealed a biologic mechanism functioning at physiological pH. Finally , r and omized studies did not provide evidence for an adverse role of phosphate , milk , and grain foods in osteoporosis .
Conclusions A causal association between dietary acid load and osteoporotic bone disease is not supported by evidence and there is no evidence that an alkaline diet is protective of bone health
Background Modern diets have been suggested to increase systemic acid load and net acid excretion .
In response , alkaline diets and products are marketed to avoid or counteract this acid , help the body regulate its pH to prevent and cure disease .
The objective of this systematic review was to evaluate causal relationships between dietary acid load and osteoporosis using Hill 's criteria .