Glycine for Sleep Onset Difficulty

D Preliminary

Based on 1 study with 5 total participants. Results are mixed across studies.

Key Statistics

Studies

Participants

↔

Mixed

D Preliminary

Grade

Referenced Papers

Human prion disease with a G114V mutation and epidemiological studies in a Chinese family: a case series. Other

                        Journal of medical …
                        2008
                        
                        33 citations

Dosage & Usage

Commonly Used Dosages

sleep:: 3 g, 1 hour before bed

Upper limit: Not established; studied up to 9 g/day

Dosages Studied in Research

Dosage	Duração	Effect	N
None	--	Neutral	5

Best taken: 1 hour before bed

Safety & Side Effects

Reported Side Effects

⚠ Nausea
⚠ Soft stools
⚠ Mild drowsiness

Known Interactions

● Clozapine — glycine may reduce effectiveness of this antipsychotic
● Antihypertensives — potential additive blood pressure lowering

Tolerable upper intake: Not established; studied up to 9 g/day

Always consult your healthcare provider before starting any supplement.

Frequently Asked Questions

Does Glycine help with Sleep Onset Difficulty?

Based on 1 studies with 5 participants, there is preliminary evidence that needs more research that Glycine may support Sleep Onset Difficulty management. Our evidence grade is D (Preliminary).

How much Glycine should I take for Sleep Onset Difficulty?

Studies have used various dosages. A commonly studied range is 3 g, 1 hour before bed. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Glycine?

Reported side effects may include Nausea, Soft stools, Mild drowsiness. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for Glycine and Sleep Onset Difficulty?

We rate the evidence as Grade D (Preliminary). This rating is based on 1 peer-reviewed studies with 5 total participants. The overall direction of effect is mixed.

Related Evidence

Other ingredients for Sleep Onset Difficulty

Melatonin A Strong L-Theanine A Strong Tryptophan B Moderate GABA B Moderate Ashwagandha B Moderate Valerian Root B Moderate

Glycine for other conditions

Insomnia A Strong

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.