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 .
Controlled substitution of soy protein for meat protein: effects on calcium retention, bone, and cardiovascular health indices in postmenopausal women.
In a controlled feeding study , the effects of substituting 25 g soy protein for meat on calcium retention and bone biomarkers were determined . Postmenopausal women ( n = 13 ) ate two diets that were similar , except that , in one diet , 25 g high-isoflavone soy protein ( SOY ) was substituted for an equivalent amount of meat protein ( control diet ) , for 7 wk each in a r and omized crossover design . After 3 wk of equilibration , calcium retention was measured by labeling the 2-d menu with (47)Ca , followed by whole-body counting for 28 d. Urinary calcium and renal acid excretion were measured at wk 3 , 5 , and 7 . Biomarkers of bone and cardiovascular health were measured at the beginning and end of each diet . Calcium was similarly retained during the control and SOY diets ( d 28 , percent dose , mean + /- pooled sd : 14.1 and 14.0 + /- 1.6 , respectively ) . Despite a 15 - 20 % lower renal acid excretion during the SOY diet , urinary calcium loss was unaffected by diet . Diet also did not affect any of the indicators of bone or cardiovascular health . Substitution of 25 g high isoflavone soy protein for meat , in the presence of typical calcium intakes , did not improve or impair calcium retention or indicators of bone and cardiovascular health in postmenopausal women
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 .