Alpha-GPC
Alpha-GPC (L-alpha-glycerylphosphorylcholine) is a choline compound that raises acetylcholine and is promoted for memory and physical performance. Evidence is limited: a few small studies suggest possible benefit in age-related cognitive decline and modest effects on power output, while benefits in healthy people are unproven. One large observational analysis raised a possible stroke-risk signal that warrants caution pending confirmation.
Too little may be associated with
Less cholinergic support.
Too much may be associated with
Headache, GI upset; cardiovascular caution.
Informational only — not medical advice.
Neurotransmitters
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Where to buy
Popular Alpha-GPC products on Amazon. Not medical advice — talk to a clinician before starting a supplement.
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Research (5)
- L-α-GPC in Cognitive Decline: Mechanisms and Clinical Evidence in Neurodegenerative Disorders Putri et al. (2026) Full text ↗ PubMed ↗
- Production of α-Glycerylphosphorylcholine in Fermented Roots, Tubers, and Fruits Tse et al. (2024) Full text ↗ PubMed ↗
- Choline supplements: An update Kansakar et al. (2023) Full text ↗ PubMed ↗
- Late treatment with choline alfoscerate (l-alpha glycerylphosphorylcholine, α-GPC) increases hippocampal neurogenesis and provides protection against seizure-induced neuronal death and cognitive impairment Lee et al. (2017) Full text ↗ PubMed ↗
- Effect of a new cognition enhancer, alpha-glycerylphosphorylcholine, on scopolamine-induced amnesia and brain acetylcholine Lopez et al. (1991) Full text ↗ PubMed ↗
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