Calcium builds and maintains bone; phosphorus is crucial for energy metabolism. chronically high phosphorus (especially from sodas, processed meats, and some protein additives) can trigger hormonal changes that pull calcium out of bone and into the blood.

Cambridge Core

High phosphorus intakes acutely and negatively affect Ca and bone metabolism in a dose-dependent manner in healthy young females | British Journal of Nutrition | Cambridge Core

High phosphorus intakes acutely and negatively affect Ca and bone metabolism in a dose-dependent manner in healthy young females - Volume 96 Issue 3

Effects of High Phosphorus Diet on Bone Metabolism-Related Gene Expression in Young and Aged Mice - PMC

In this study, the effects of high phosphorus (P) diet on bone metabolism-related gene expression were investigated in young and aged mice. Twelve-...