CDP-Choline (Citicoline)

Choline donor & cytidine source; supports phosphatidylcholine synthesis & dopaminergic function. Strong cognitive evidence.

cognitionfocusbraindaily

Evidence last reviewed: 04 Apr 2026

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Trade-offs & context

Known concerns, timing considerations, & interactions

Cardiovascular

Elevated TMAO signal from high choline intake — same early concern as Alpha-GPC; clinical significance debated

Neural

Headache or cognitive fatigue ('choline headache') when stacked with other cholinergic supplements

Interaction

Do not combine with Huperzine A — risk of excess acetylcholine accumulation and cholinergic toxicity

Dot colour: ●High concern ●Moderate ● Low / note

Biomarkers studied

Outcomes directly measured across the evidence records below

Cognitive

Cognitive FunctionMemory

Evidence

1 record

Attention / memory / cognitive function

Healthy adults; older adults; cognitive decline • RCTs + reviews

PUBMEDModerate

Consistent improvements in attention & memory; dopamine receptor upregulation noted; good safety profile.

Dose: 500 mgDuration: 4–12 weeks

Citation: Alvarez et al. 1997; McGlade et al. 2012

Often preferred over choline bitartrate for cognition; alpha-GPC competes for power output.

Forms

CDP-Choline (Cognizin)

Cognizin is the best-studied branded form.

Stacks containing CDP-Choline (Citicoline)

Public community stacks that include this ingredient.

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cognitivemoodfocus

Cognitive & Mood Enhancement

by@athlete

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.

Phenylpiracetam

100mg

CDP-Choline (Citicoline)

250mg

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