The Magnesium Supplement that Helps Support: Proper muscle function; energy metabolism; cardiovascular health. Magnesium chloride for increased absorption versus magnesium oxide Magnesium is necessary for normal protein synthesis, carbohydrate metabolism, proper muscle function & helps to absorb calcium and potassium. Specially formulated with calcium for normal nerve and muscle function. What's Slow about SlowMag mg? SlowMag mg tablets are slow to digest. They feature a special enteric coating technology that is designed to reduce the chance of stomach upset. Did you know? According to a USDA agricultural research report, 7 out of 10 Americans are below the dietary reference intake for magnesium. Coupon inside.