DaVinci Laboratories Effervescent Magnesium Citrate is a dietary supplement designed for proper nerve and muscle function support. The mineral magnesium is needed by evey cell as it activates at least 350 different enzymes within your body making it crucial for many of the metabolic functions. Magnesium supports heart rhythm, normal muscle and nerve function, energy production and strong bones and teeth. It also supports regulation of many nerve receptors and relaxation of involuntary and voluntary muscle tissue. This great tasting magnesium formula is a easy, convenient way to supplement your magnesium. Recommended usage: As a dietary supplement, mix one scoop (6 g) in water daily, preferably in the evening, before bed, or as directed by your healthcare practitioner.