Expert Answer
Does glycine help with sleep?
Quick Answer
Yes — all 5 experts recognize glycine's sleep benefits. Attia supplements nightly alongside magnesium and ashwagandha. It works by lowering core body temperature. Huberman lists it as an optional addition to his sleep stack. 1-3g before bed.
Strong Consensus
on Glycine overall
What Researchers Say
Personally supplements glycine nightly alongside ashwagandha and magnesium L-threonate.
Lists glycine as optional for middle-of-night awakenings in his Sleep Toolkit.
Recommends glycine for sleep quality and nervous system relaxation.
Includes glycine in Blueprint longevity mix alongside creatine and CAKG.
Detailed Answer
Glycine is well-supported for sleep with buy-in from all five experts. Attia takes it nightly alongside ashwagandha and magnesium threonate. Huberman lists it as an optional addition for middle-of-night awakenings. Johnson includes it in his morning longevity mix. Hyman recommends it for sleep quality.
The mechanism: glycine lowers core body temperature to facilitate sleep onset. This is complementary to magnesium's GABA activity. Dosage: 1-3g before bed. Glycine has a naturally sweet taste and dissolves easily in water.
Glycine is also a precursor to glutathione (alongside NAC's cysteine) and a key amino acid in collagen, giving it multiple roles beyond sleep.
Related Questions
Can you take glycine with magnesium?
Yes. Attia's nighttime routine combines both glycine and magnesium L-threonate alongside ashwagandha.
More Questions About Glycine
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