Effect of Feeding High Levels of Protein and Calcium in Rat Rations on Magnesium Deficiency Syndrome

Abstract
The feeding of high levels of protein to rats caused a marked growth depression over those fed normal protein rations. The deletion of Mg from these rations caused a marked growth depression, increased mortality and the development of Mg deficiency symptoms. The high level of protein increased the severity of the Mg deficiency syndrome. The addition of high Ca levels to the normal protein ration increased the severity of the Mg deficiency, but a combination of high protein and high Ca was very little more severe than either alone.