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Magnesium Bisglycinate

Nutricost · 200mg · 240 caps
4.43rd party testedemerging evidence
7.6of 10
Nutricost Magnesium Bisglycinate
where to buy · 1 sellerfrom S$28S$0.12 per capsule
Good for: sleep. Chasing focus instead? Magnesium L-threonate has the better evidence for that. See those instead

The score explained

evidence, testing and value, weighed before price

Why 7.6 of 10: Big bottle, low cost per serving. The value chelate.

what’s good
  • Cheap per serving
  • Chelated form
worth knowing
  • Basic brand presentation
  • Large bottle, big serving count

what the evidence says

Magnesium's evidence is honest but layered: deficiency is genuinely common and correcting it helps sleep, mood and muscle function, while trials in replete adults show much smaller effects. For sleep specifically, small trials suggest modestly faster sleep onset, mostly in older or deficient adults. Chelated bisglycinate absorbs well and is the gentlest common form on the gut, which is a tolerability advantage rather than an evidence one.

The effect of magnesium supplementation on primary insomnia in elderlyAbbasi et al., J Res Med Sci · 2012The effects of magnesium supplementation on subjective anxiety and stress: a systematic reviewBoyle et al., Nutrients · 2017
browse all research on magnesium

reviews

4.4· aggregated across retailer sites

The theme is value: a big bottle of chelated magnesium for less than half the boutique brands, and reviewers say it works the same for sleep and cramps. Capsules are on the larger side and the count means the bottle lasts months. Packaging is plain and a few doubt it looks legit, testing reports settle it.

great valuehelps sleepbig capsules
AI summary of public retailer reviews

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