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Alpha-GPC — timing, dose & interactions
Choline source that supplies the building blocks of acetylcholine. In a 12-week Korean trial in mild cognitive impairment it improved a cognitive score more than placebo. But a 10-year Korean national cohort linked alpha-GPC use to a higher stroke risk that rose with dose — an observational finding that needs confirming.
Also known as: Choline alfoscerate, L-alpha-glycerylphosphorylcholine
Timing
When to take it
Earlier in the day; larger amounts are often split into two or three doses.
Interactions
Alpha-GPC with other supplements
Safety
Medications & health conditions
Alpha-GPC: no safety data in pregnancy. Alpha-GPC has not been studied for safety in pregnancy or breastfeeding. Avoid unless your clinician recommends it.
Buying guide
What to look for on the label
Alpha-GPC
- Check the actual alpha-GPC per serving — some powders are only 50% alpha-GPC
FAQ
Common questions
When is the best time to take Alpha-GPC?
On waking / Breakfast. Earlier in the day; larger amounts are often split into two or three doses.
Should Alpha-GPC be taken with food?
It can be taken with or without food. Earlier in the day; larger amounts are often split into two or three doses.
Can you take Alpha-GPC with Citicoline?
No need to take both — they supply choline for the same purpose, and the pair hasn't been studied. Pick one. Given the stroke signal seen with alpha-GPC in a large cohort, citicoline is the more conservative choice.
Sources