Compare Supplements

Side-by-side comparison of 2 supplements

Gab4.0

GABA

High safety

Gly6.5

Glycine

High safety

Evidence

Evidence Score4/10

Studies: 44

Meta-analyses: 0

Evidence Score6.5/10

Studies: 49

Meta-analyses: 4

Outcome Grades

Improve deep sleep qualityD

Fall asleep fasterD

Fix sleep schedule / jet lagD

Stay asleep longerD

Support moodD

Improve deep sleep qualityB

Fall asleep fasterC

Fix sleep schedule / jet lagC

Stay asleep longerC

Support moodD

A-F grade per outcome, combining overall evidence with goal-specific relevance. A = strong evidence; F = insufficient. Hover a badge for details.

Dosage & timing

Dosage:

750mg

Best Time:

Before bed

Can take on empty stomach

Form:

Capsules or powder

Dosage:

Best Time:

Before bed

Can take on empty stomach

Form:

Powder (dissolves easily, tastes sweet)

What you'll notice

😌 Relaxationpositive

30-60 minutes

😮‍💨 Reduced Anxietypositive

30-60 minutes

😴 Drowsinessneutral

30-60 minutes

😴 Better Subjective Sleep Qualitypositive

First few nights

⚡ Less Next-Day Fatiguepositive

Next morning

🍬 Sweet Tasteneutral

Immediate

Safety

High safety

Contraindications:

Those taking sedatives or anti-anxiety medications (without doctor approval)

Drug Interactions:

Benzodiazepines
Blood pressure medications
Alcohol

Side Effects:

DrowsinessTingling/flushingShortness of breath (at very high doses)

High safety

Contraindications:

Clozapine users (glycine may affect drug efficacy)

Drug Interactions:

Clozapine
Other sleep aids

Side Effects:

GI discomfortVivid dreams

Works well with

complementary

complementary

stacks-well

complementary

stacks-well

How they work together

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