Postprandial calciuric responses to high and low protein meals is examined and changes in urinary Ammonia. Urea, pH, creatinine, phosphate are compared with serum calcium, creatinine, urea, protein and insulin. Group result show that the average postprandial calciuria increase was greater after the high protein meals compared to low protein meals. But there was considerable variation between subjects. However the increase in calciuria in every case showed a plateau effect during the time of maximum insulinemia Examination of individual results show that the individuals with less insulinemia exhibited greatest hypercalciuria and those with greater insulinemia show less calciuria and even one individual with an exaggerated insulinemia response showed reduced hypercalciuria following the high protein meal. Discussion is provided regarding the significance of the protein induced hypercalciuria and possible mechanisms for it cause. The result indicate that plasma insulin had a significant effect on calciuria.

hypercalciuria, protein, insulin