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Glycine

Moderate Evidence
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Overview

Form
capsule
Category
Amino Acid

Stronger evidence for sleep than magnesium glycinate

Supported Health Goals

Sleep Quality

Moderate Evidence

Improve sleep onset, duration, and quality

Stronger evidence than magnesium glycinate

Scientific Studies (2)

Nutritional Modulation of Sleep Latency, Duration, and Efficiency: A Randomized, Repeated-Measures, Double-Blind Deception Study.

Primary
Med Sci Sports Exerc· 2023· rct

Improved sleep latency and sleep efficiency in healthy adults

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The sleep-promoting and hypothermic effects of glycine are mediated by NMDA receptors in the suprachiasmatic nucleus.

Neuropsychopharmacology· 2015· animal study

Glycine promotes sleep via NMDA receptors, lowering core body temperature

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Safety & Interactions

moderate Interaction

Complementary sleep enhancement mechanisms

Recommendation: Good sleep stack combination

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