Supplements
Effectiveness rated 75 due to promising but limited human RCTs (3 key studies, n=100-109 each) showing sleep/cognition benefits at 1-2g/day, supported by animal data on brain penetration, though manufacturer-funded and small-scale. Safety high (95) as studies report no adverse effects, EFSA safety opinion, and magnesium's established profile outweigh minor GI risks. Quality moderate (50) from unknown brand lacking NSF/USP verification; ConsumerLab approves similar Mg products but highlights labe
Mag L-Threonate is a promising brain-targeted magnesium form with moderate RCT support for sleep and cognition improvements at 1-2g/day. Well-safe but evidence limited by small, funded studies. Recommended for targeted use pending more research.