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The Influence of Protein Intake on Calcium Balance

Protein and calcium metabolisms interact at multiple levels. It is well known that an increase in the protein content of the diet causes an increase of the calcium concentration in the urine. However, the exact consequences of protein intake on the calcium economy are debated. Indeed, there are two explanations for increased calciuria: increased calcium absorption or increased bone resorption. Currently, there is no clear answer; however, there is increasing evidence that protein intake is not harmful to bone. In fact, an increased protein intake would probably be beneficial for bone. This chapter reviews the different aspects of the protein–calcium interaction and discusses the proposed mechanisms. The consequences for health are also considered, especially on bone strength and kidney-stone formation.

Print publication date: 08 Oct 2015
Copyright year: 2016
Print ISBN: 978-1-84973-887-3
PDF eISBN: 978-1-78262-213-0
ePub eISBN: 978-1-78262-729-6