CDP-Choline (Citicoline)

Also known as: citicoline, cytidine diphosphocholine, Cognizin, Ceraxon

Grade B — Moderate Evidencenootropiccholine
250–500 mgMorning with food. Stimulatory — avoid evening.

CDP-Choline (citicoline) is a naturally occurring compound that provides both choline for acetylcholine synthesis and cytidine, which is converted to uridine for neuronal membrane repair. Clinical trials demonstrate benefits for attention, memory, and cognitive function, with particular evidence in age-related cognitive decline and post-stroke recovery. It has a broader mechanism than other choline sources due to its dual contribution to both neurotransmitter and membrane phospholipid synthesis.

TL;DR: Bioavailable choline source that also elevates dopamine and acetylcholine. Cognizin form best studied for attention and working memory.

🧠Cognitive Performance🎯Focus
Last reviewed: 2026-03-12

Quick Facts

Evidence

Grade B

Studies

2

Interactions

2

Forms

1

Evidence Rating: Grade B — Moderate Evidence

Some RCTs with positive results, or strong observational evidence. More research may refine our understanding.

Interaction Warnings

Levodopa (Parkinson's)Moderate

May enhance dopaminergic effects; monitor

Alpha-GPCLow

Redundant choline source; choose one per stack

Important Notes

  • Choose one choline source: either CDP-choline OR Alpha-GPC
  • Excellent safety profile
  • Also elevates dopamine

Clinical Evidence (2 studies)

Citicoline: comprehensive review

Secades JJ & Lorenzo JL (2006) — Methods Find Exp Clin Pharmacol

Comprehensive review of mechanism and clinical evidence for stroke and cognition

View on PubMed

Citicoline improved attention in healthy adults

McGlade E et al. (2012) — Food Nutr Sci

Cognizin 250/500mg improved attention and psychomotor speed; RCT

View on PubMed

Alternatives to Consider

These supplements target similar goals and may be worth considering alongside or instead of CDP-Choline (Citicoline).

L-Theanine

Grade B

Amino acid from green tea. Promotes calm focus (alpha brain waves) without drowsiness. Excellent safety profile.

🎯 Focus🧠 Cognitive Performance

Lion's Mane

Grade B

Medicinal mushroom that stimulates NGF. Multiple RCTs show benefits for mild cognitive impairment and mood.

🧠 Cognitive Performance🎯 Focus

Alpha-GPC

Grade B

Most bioavailable choline source for the brain. Supports acetylcholine production for memory, focus, and muscle contraction.

🧠 Cognitive Performance🎯 Focus

Related Supplements

Alpha-GPC

Grade B — Moderate Evidence

Most bioavailable choline source for the brain. Supports acetylcholine production for memory, focus, and muscle contraction.

L-Theanine

Grade B — Moderate Evidence

Amino acid from green tea. Promotes calm focus (alpha brain waves) without drowsiness. Excellent safety profile.

Lion's Mane

Grade B — Moderate Evidence

Medicinal mushroom that stimulates NGF. Multiple RCTs show benefits for mild cognitive impairment and mood.

Bacopa Monnieri

Grade B — Moderate Evidence

Ayurvedic herb with strong meta-analytic evidence for memory and learning. Requires consistent use for 8-12 weeks.

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⚕️ Important Disclaimer

This information is for educational purposes only. It is not medical advice. Always consult a healthcare provider before starting any supplement regimen, especially if you take medications or have health conditions.

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