CDP-choline vs Alpha-GPC
Both are choline sources with moderate evidence, and the practical difference is character: CDP-choline (citicoline) is the steady daily driver with a strong safety record, while Alpha-GPC hits faster and moonlights as a pre-workout.
Side notes separate them further. Alpha-GPC can cause headaches at higher doses, and citicoline is the catalog's pick if you're sensitive to the fishy-odor issue some choline sources cause.
| Attribute | CDP-choline | Alpha-GPC |
|---|---|---|
| Best for | Daily attention and memory support | On-demand focus and training days |
| Evidence | Moderate for attention and memory | Moderate for cognition; emerging for power output |
| Daily dose | 250-500 mg | 300-600 mg |
| When | Morning, with or without food | 30-60 minutes before demands |
| Watch for | Few; well tolerated across trials | Headaches at higher doses; store it dry |
Which one should you take?
Pick CDP-choline if
you want a background upgrade you take every morning and forget. Its trials are about steady attention and memory, and tolerability is its superpower.
Pick Alpha-GPC if
you want something felt on demand: a hard session, a heavy lift, a long day. The emerging power-output data is why it shows up in pre-workout stacks.
Can you take both?
Skip that. The catalog flags the combination: both provide choline, and the surplus tends to show up as headaches and GI complaints rather than extra focus. Pick one, run it for 8 weeks, then switch if you're curious.
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