Magnesium is a mineral that your body requires in order to carry out a variety of important processes. It helps turn the food that you eat into energy‚ and aids your parathyroid gland in making parathyroid hormone. Your parathyroid gland is actually four very small glands located in your neck‚ right next to your thyroid gland‚ and parathyroid hormone is a protein that helps your body absorb calcium. Meanwhile‚ magnesium maintains heart health by preventing blood clots from forming. Within the body as a whole‚ magnesium prevents molecules known as free radicals from harming your cells. It may also be able to prevent the damage caused to your cells when your blood sugar levels remain at high levels for long periods of time.