Magnesium has many health benefits and plays an important role in helping to eliviate reactions in the body such as muscle cramps, restless legs and eye twitches. Other signs of low magnesium can be trouble sleeping, PMT and anxiety. Magnesium also supports healthy bones, teeth and muscles. Made with Aquamin™ marine magnesium - as natural as can be and better tolerated than other types of magnesium. It also naturally contains many beneficial trace minerals which researchers have found to help the magnesium to be better absorbed.