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glycine

Physical Product · Supplements & vitamins · 18 mentions · 1 subreddit · discussed in r/Supplements

Reddit take

Not enough linked mention summaries yet; the source excerpts below are the evidence.

Pros

  • I’ve been able to improve: My sleep with magnesium bisglycinate and glycine or rarely ornithine
  • Glycine or L-theanine are also helpful for middle-of-the-night calm and deeper sleep.
  • Try glycine 3g, 2 hours before bed time
  • I have had success with glycine eliminating some very mild peripheral neuropathy.
  • I've been really liking glycine for sleep, and I notice a difference even with a single 500 mg capsule.

Cons

  • Ive been experimenting with glycine before bed to try and improve my sleep quality but man every morning after I've taken it I wake up feeling exhausted and spaced out.
  • Glycine gives me terrible insomnia, same with magnesium glycinate. Every time I try either of them, I’m not sleeping until 3am at least
  • Just for information and others people's : in some people , magnésium glycinate can trigger anxiety, same with glycine. It's my case sadly.
  • I’ve read that Glycine might help, but does it actually improve sleep quality?
  • I wish it did for me. Glycine has the opposite effect for me

Sentiment

12 positive (67%) · 1 mixed (6%) · 5 negative (28%)

Trust + time weighted score: +34% · raw score 39%

What redditors said (10 of 18)

Ive been experimenting with glycine before bed to try and improve my sleep quality but man every morning after I've taken it I wake up feeling exhausted and spaced out.
negative · u/r****y · r/Supplements · comment · Jul 14, 2025 · open on Reddit ↗
I’ve been able to improve: My sleep with magnesium bisglycinate and glycine or rarely ornithine
positive · u/L***B · r/Supplements · Dec 27, 2025 · open on Reddit ↗
Glycine or L-theanine are also helpful for middle-of-the-night calm and deeper sleep.
positive · u/F****3 · r/Supplements · comment · Dec 8, 2025 · open on Reddit ↗
Glycine gives me terrible insomnia, same with magnesium glycinate. Every time I try either of them, I’m not sleeping until 3am at least
negative · u/9****r · r/Supplements · comment · Dec 2, 2025 · open on Reddit ↗
Just for information and others people's : in some people , magnésium glycinate can trigger anxiety, same with glycine. It's my case sadly.
negative · u/S****5 · r/Supplements · comment · Dec 2, 2025 · open on Reddit ↗
Try glycine 3g, 2 hours before bed time
positive · u/P****1 · r/Supplements · comment · Nov 18, 2025 · open on Reddit ↗
I have had success with glycine eliminating some very mild peripheral neuropathy.
positive · u/h****s · r/Supplements · comment · Nov 5, 2025 · open on Reddit ↗
I've been really liking glycine for sleep, and I notice a difference even with a single 500 mg capsule.
positive · u/o****e · r/Supplements · Aug 5, 2025 · open on Reddit ↗
The single most helpful substance which I never see anyone recommend is Glycine. 6-8g of Glycine an hour before bed knocks me out better than alcohol or prescription drugs ever could.
positive · u/S****0 · r/Supplements · comment · Aug 1, 2025 · open on Reddit ↗
Supps like NAC, Taurine, Glycine, Vitamins C, E, D, Boswelia, Schisandra help with this as well.
positive · u/C****d · r/Supplements · comment · Jul 14, 2025 · open on Reddit ↗

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