Supplement Scholar
Compound

Choline

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Choline. Essential nutrient for cell membranes, methylation, and acetylcholine synthesis.

How it works. Precursor to acetylcholine, phosphatidylcholine, and methyl donor (via betaine).

What the research supports. 2 graded claims. Strongest: Citicoline improves post-stroke cognition (moderate).

How much to take. Typical dose: 550 mg male / 425 mg female (AI); 250–500 mg citicoline.

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with Omega-3 (EPA/DHA), Alpha-GPC or CDP-choline, Milk thistle (silymarin).

Common forms. Available as Choline bitartrate, Citicoline, Alpha-GPC, Phosphatidylcholine.

Key studies. 9 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried Choline. Anecdotes are not medical advice.

Choline. Essential nutrient for cell membranes, methylation, and acetylcholine synthesis.

Molecular structureC5H14NO+ · 104.17 g/mol

What it is

Essential nutrient for cell membranes, methylation, and acetylcholine synthesis.

Also called

Choline bitartrateCiticoline (CDP-choline)

Food sources

Egg yolkLiverBeefSoy

Goals

Brain & CognitiveLiver HealthFertility

How it works

Precursor to acetylcholine, phosphatidylcholine, and methyl donor (via betaine).

Pathways

  • Acetylcholine synthesis
  • Phospholipid synthesis
  • Methylation

Effects

  • +Acetylcholine synthesis supports
  • +Liver triglyceride export supports

What the research supports

Citicoline improves post-stroke cognitionmoderate
Adequate intake reduces NAFLD riskmoderate

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
550 mg male / 425 mg female (AI); 250–500 mg citicoline
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodWith a meal containing fat for fat-soluble compounds; otherwise either.
Best formMost evidence is based on the choline bitartrate form.
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Side effects & interactions

Common side effects

  • Fishy odor at high doses (bitartrate)

Medication interactions

Prescription medications (general)minor

Always disclose Choline use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • Omega-3 (EPA/DHA)Membrane fluidity and neuronal signaling support.
  • Alpha-GPC or CDP-cholineProvides choline substrate for acetylcholine synthesis.
  • Milk thistle (silymarin)Complementary hepatoprotective antioxidant pathways.

Common forms

  • Choline bitartrate
  • Citicoline
  • Alpha-GPC
  • Phosphatidylcholine

Key studies

9 studies cited in total.

PubMed: Choline — Citicoline improves post-stroke cognition ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Choline and "Citicoline improves post-stroke cognition". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Choline — Adequate intake reduces NAFLD risk ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Choline and "Adequate intake reduces NAFLD risk". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Choline — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Choline and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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