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Sleep

supplements

01Gold Standard
12/12
Quality Score
Thorne

Magnesium Bisglycinate

$2590 capsules
bisglycinatebioavailableNSF-certified

Bisglycinate form is highly bioavailable and doesn't cause GI issues. Glycine itself promotes relaxation. NSF Certified for Sport.

Score BreakdownStrong Evidence
Purity
Evidence
Transparency
Value
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Quality & Materials

Magnesium bound to glycine—amino acid with relaxation benefits. No fillers.

Evidence & Testing

Glycinate bioavailability well-established. Glycine has clinical evidence for sleep.

Brand Transparency

NSF Certified. Batch testing.

Value Assessment

$25/90 capsules. Good value for quality form.

Why Not Alternatives?

Magnesium oxide (most common) has <4% absorption. Citrate causes diarrhea. Threonate is better for cognition but bisglycinate is better for sleep and muscle relaxation.

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