Now Foods, Magnesium Citrate, 200 mg, 250 Tabs

From the manufacturer

Product Description Considered as Dietary Supplement Critical for Enzyme Function GMP Quality Assured Nervous System Support Supports Energy Production Vegetarian Formula Product Benefits Magnesium is a mineral that is critical for energy production and metabolism, muscle contraction, nerve impulse transmission, and bone mineralization.* It is a required cofactor for an estimated 300 enzymes.* Among the reactions catalyzed by these enzymes are fatty acid synthesis, protein synthesis, and glucose metabolism.* Magnesium status is also important for regulation of calcium balance through its effec