Magnesium May Explain Diabetes Benefits of Whole Wheat

It’s thought that foods with a lower glycemic index may improve insulin sensitivity. Yet whole wheat bread, with a glycemic index almost identical to bread made with refined wheat, has been found to promote insulin sensitivity when compared to the “white bread.” Researchers at Pantox Laboratories in San Diego, California, hypothesize that magnesium may be responsible, and urged “the strong desirability of choosing whole grain products in preference to refined grains.”
Medical Hypotheses, 2005; 64(3): 619-27