This magnesium glycinate delivers 250mg of elemental **magnesium** across its 3-capsule serving — a solid amount for sleep, muscle relaxation, and easing tension that lands comfortably in the 100–400mg supplemental range and covers well over half the 310–420mg daily target. The magnesium is bound to glycine as a bisglycinate chelate, the form that absorbs well and stays gentle on your gut, so you avoid the loose-stool effect harsher magnesium forms can cause.

Glycine isn't just a delivery vehicle here — it's a calming amino acid with its own modest research for sleep onset, which fits the product's focus. To reach the full 250mg you need all three capsules, so a single one gets you only about 83mg; take the complete serving with food in the evening and you're well-positioned for the calm-and-sleep benefits magnesium is best studied for.

BioStacks
Nordic Naturals

Magnesium Glycinate

3 Capsules · 30 servings · $0.62/serving

iHerbAmazon

Best for

Sleep

Ingredients (1)

Magnesium

100%

Dose

250 mg

Target

100–400 mg

Form

Premium

Other Ingredients (4)

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

HypromelloseCapsule

Plant-derived capsule material from cellulose

Ascorbyl PalmitateAntioxidant

Fat-soluble form of vitamin C used as preservative

Hydroxypropyl CelluloseBinder

An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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