Low magnesium is a major cause of muscle cramps everywhere in the body. (This includes leg and foot cramps). In fact, 78% of people have a severe lack of magnesium. This is a big problem -- because magnesium is vital for health. Your body needs magnesium to control pain, swelling, tension andinflammation. Studies show that by fixing a magnesium deficiency, you can end leg cramps and stop them from ever coming back! And unfortunately, no prescription medication can fix low magnesium. So, how does magnesium work to stop cramps? Magnesium is Fast, Easy, Safe and POWERFUL Because it Attacks Leg Cramps from ALL Angles. This crucial mineral...Antagonizes the effect of calcium, which in excess, can disturb normal muscle function. (Also, beware that calcium supplements, especially with Vitamin D, can cause hypercalcemia!)Increases the absorption of potassium, which is critical for proper muscle function. May decrease pain by blocking NMDA receptors in the brain and nervous system. Is anti-inflammatory throughout the entire body. May dilate blood vessels and decrease blood pressure. May increase your serotonin, GABA and melatonin levels, which can help you relax and fall asleep. Cramp Defense® is Unique and Not Sold in Stores. It is the Only Magnesium Supplement Designed for the Special Needs of Leg Cramp Sufferers. It Starts Working Immediately and Gets Even MORE Effective With Time.People with leg cramps caused by magnesium deficiency need a fast solution that works -- without wasting time or money. Our product Cramp Defense® works by fixing cramps at the root cause. How? It delivers nothing but pure, high-absorbing magnesium, safely and without side-effects. Our product is unique compared to others because it is:High-Absorbing: Our form of magnesium is bound to an organic acid (malic), facilitating easy absorption. (If your body doesn't absorb it, it cannot work!)Fast: It starts absorbing immediately and becomes even more effective with time, as magnesium levels rise.Side Effect-Free: It causes no stomach upset or laxative effect (when used as directed at correct doses). Weird Ingredient-Free: It has no other ingredients than a gelatin capsule and magnesium stearate. Easy: Your dose comes in small capsules, not big tablets or messy powders. We manufacture it in an FDA-inspected facility, to the same standards as any food item.The active ingredient is magnesium bound to malate. This form of magnesium is found in fruit and vegetables, as malic acid is a naturally occurring ligand of magnesium ions. Other popular forms of magnesium cannot be found naturally in food. Often they are inorganic in origin, made from crushed-up mineral material, such as magnesium oxide.