Superb Bone & Cardiovascular Support Great for Lag Cramps!!! Superior Absorption Dietary Supplement About Ionic-Fizz Magnesium Plus The magnesium and other minerals in Ionic-Fizz Magnesium Plus enter the stomach in ionic form. Because of this, they are extremely well absorbed. The result is the world's premiere magnesium supplement. It prevents and relieves muscle cramps, supporting strong bones, promotes cardiovascular health and normal blood sugar levels, encourages deep and restful sleep, etc.