Diabetes is frequently associated with a magnesium deficiency according to the National Institutes of Health. This is a mineral that LOWERS insulin resistance and IMPROVES blood sugar control. Specifically, magnesium supplementation improved insulin sensitivity by 10 percent – and reduced blood sugar by an impressive 37 percent. The researchers found that the supplemented group had significant reductions in HbA1c- which plunged from 10.11 at the beginning of the study to 7.88 percent by study’s end. Because insulin resistance affects the transport of magnesium between cells, diabetics are particularly susceptible to magnesium deficiency.