Magnesium Citrate

Magnesium citrate is one of the best-absorbed oral forms, with bioavailability consistently above oxide in comparative trials. Evidence supports its use for repletion in deficiency, mild constipation (it's a saline laxative at higher doses), and muscle cramp prevention in athletes. For sleep or anxiety specifically, the RCT data is thinner and mixed, despite the marketing. Take it away from calcium and iron to avoid absorption interference. NSF Certified Facility for potency and contaminant control.