CDP-Choline (Citicoline)
Choline donor & cytidine source; supports phosphatidylcholine synthesis & dopaminergic function. Strong cognitive evidence.
Evidence last reviewed: 04 Apr 2026
CDP-Choline is a choline donor that supports cognitive function. It has solid evidence for improving attention and memory but comes with some risks.
Elevated TMAO signal from high choline intake — same early concern as Alpha-GPC; clinical significance debated
Headache or cognitive fatigue ('choline headache') when stacked with other cholinergic supplements
Do not combine with Huperzine A — risk of excess acetylcholine accumulation and cholinergic toxicity
Summarized study outcomes with population, design, grade, and effect data.
Moderate evidence supports CDP-Choline's benefits for attention and memory, particularly in older adults. While the safety profile is good, some concerns about elevated TMAO levels and potential headaches exist.
Attention / memory / cognitive functionHealthy adults; older adults; cognitive decline · RCTs + reviewsModerate
Consistent improvements in attention & memory; dopamine receptor upregulation noted; good safety profile.
Stacks containing CDP-Choline (Citicoline)
Public community stacks that include this ingredient.
Cognitive & Mood Enhancement
Phenylpiracetam & CDP-choline are combined to enhance cognitive function & mood. Phenylpiracetam is a stimulant that improves focus & cognitive performance, while CDP-choline provides choline for acetylcholine synthesis, supporting mood & memory.