This edible root goes excellent with salads, giving them a spicy and very particular taste. They have diuretic properties, which means they promote and increase the function of the kidneys to produce extra urine. Therefore, they may help you keep your blood pressure under control while giving you extra magnesium. You would get near 200 mg of magnesium for each cup of radishes. They are useful to treat urinary tract infections, so it’s a good idea to keep them around and learn a few tasty recipes.