Choline 101: Which Source Should You Use?

Choline is a precursor to acetylcholine. Adequate choline supports memory, mental energy, and the cholinergic effects of racetams. But not all choline sources are equal.

Alpha-GPC

Highly bioavailable. Crosses the blood-brain barrier efficiently. Dose: 300–600 mg/day.

CDP-Choline (Citicoline)

Provides both choline and uridine. Better for sustained mood support. Dose: 250–500 mg/day.

Choline Bitartrate

Cheap and widely available, but poor BBB penetration. Mainly useful for general choline status, not nootropic effect.