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Choline
Acetylcholine · liver
Acetylcholine precursor, phosphatidylcholine, methyl donor.
Upper-limit caution
The Tolerable Upper Intake Level for Choline is 3500 mg per day. Routine intakes above this level — counting food + supplements — raise the risk of adverse effects. Multivitamins, fortified foods, and standalone supplements stack faster than people expect.
What Choline does
Choline is the precursor to acetylcholine (neurotransmitter), phosphatidylcholine (cell membranes), and betaine (one-carbon metabolism). It was formally classified as essential in 1998 — the body makes some, but not enough to meet adult requirements without diet. ~90% of US adults consume below the AI. During pregnancy and lactation, choline supports fetal brain development; the prenatal RDA is high (450 mg/day), and most prenatal vitamins contain very little. Egg yolks are by far the most concentrated common source.
Food sources of Choline
Approximate Choline content per serving. Whole-food intake counts toward your daily total alongside any supplemental dose.
| Food | Serving | Choline |
|---|---|---|
| Egg yolk | 1 large | 150 mg |
| Beef liver (cooked) | 3 oz | 335 mg |
| Cooked chicken breast | 3 oz | 75 mg |
| Cooked salmon | 3 oz | 55 mg |
| Soybeans (cooked) | 1/2 cup | 55 mg |
| Quinoa (cooked) | 1 cup | 45 mg |
Signs of Choline deficiency
- ●Non-alcoholic fatty liver (impaired phosphatidylcholine for VLDL export)
- ●Muscle damage with elevated CK on prolonged choline-free diets
- ●In pregnancy: poor fetal neural tube and cognitive outcomes (observational)
Who needs more Choline
Groups and situations where Choline requirements rise or status commonly runs low:
- ●Pregnancy and lactation (450 and 550 mg/day AI)
- ●People who don't eat eggs or organ meats regularly
- ●MTHFR variants — choline pathway substitutes for the impaired folate methylation
- ●Endurance athletes (suggestive evidence for performance)
How Choline appears on labels
Supplement labels list Choline under several names depending on the chemical form used. Any of these on an ingredients panel counts toward your Choline intake:
- choline
- choline bitartrate
- alpha-gpc
- alpha gpc
- cdp-choline
- citicoline
- phosphatidylcholine
Best supplements for Choline
Top-scoring supplements in our catalog that list Choline on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Deep dive
For mechanism of action, dosing protocols, evidence grade, and interaction warnings on Choline, see the full encyclopedia entry:
Alpha-GPC encyclopedia entry →Research on Choline
Peer-reviewed studies in our research database that reference Choline. Each entry links to a detailed methodology review.
- Alvarez-Sabin et al., 2013 · Journal of the Neurological SciencesCiticoline for acute ischemic stroke: long-term use for post-stroke cognitive function
- McGlade et al., 2012 · Food and Nutrition SciencesImproved attentional performance following citicoline administration in healthy adult women
- Loguercio C, Andreone P, Brisc C, et al., 2012 · Free Radical Biology and MedicineSilybin combined with phosphatidylcholine and vitamin E in patients with nonalcoholic fatty liver disease
- Okuda et al., 1973 · Journal of Pharmacy and PharmacologyDistribution and metabolism of CDP-choline in rats
Guides covering Choline
Long-form articles in our guide library that go deeper on Choline — comparisons, protocols, and reviews.
Frequently asked questions
What is the daily target for Choline?
What foods are highest in Choline?
What is the best form of Choline to supplement?
What are the signs of Choline deficiency?
Who is most at risk for low Choline?
Related other tracked
Track your full intake
Formulate's free web app aggregates Choline (and ~40 other nutrients) across every supplement in your stack — flagging underdoses, overlaps, and upper-limit overshoots in one view.
Track your intake free →Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Targets and upper limits are general adult reference values; individual needs vary by age, sex, pregnancy status, and clinical context.







