Magnesium key to bone health in kids

Magnesium is a main factor in bone health, and there is little research on magnesium and how it relates to bone mineral density in children. Doctors in this study measured the diets, bone density, and calcium and magnesium intake and excretion in 63 children, aged 4 to 8, who were not taking any vitamins or minerals. In order to get accurate measurements, the children stayed overnight twice in the hospital, and got oral and intravenous calcium and magnesium to equal their typical diets.

While calcium did not appear to be linked to bone mineral density, the amount of magnesium the children consumed and absorbed were key predictors of bone mineral density, researchers said. 

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