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Limited evidenceBrain & cognition

Choline Bitartrate

The cheapest choline salt. Choline is a genuinely essential nutrient most people under-consume, but there is no trial showing that choline bitartrate improves memory or focus in healthy adults.

Evidence last reviewed: August 2026

What the science says

  • Choline is an essential and under-consumed nutrient Moderate evidence

    A review of intake data concluded that most adults fall below the adequate intake for choline, which is required for phosphatidylcholine, acetylcholine and methyl-group metabolism. Correcting a genuine shortfall is a nutritional argument, not a nootropic one.

  • Dietary choline and dementia risk Limited evidence

    A prospective cohort study with dose-response meta-analysis found an association between higher dietary choline intake and lower incident dementia, with a non-linear shape. Observational data cannot establish that supplements produce the same effect.

  • Cognitive enhancement Limited evidence

    No randomized controlled trial has shown that choline bitartrate improves memory, attention or mood in healthy people. Trials with positive cognitive results used citicoline or alpha-GPC, which deliver choline to the brain more efficiently.

Dosage & safety

Studied doseAdequate intake for choline is 425 mg/day for women and 550 mg/day for men. Choline bitartrate is roughly 41% choline by weight, so about 1,000–1,300 mg of the salt supplies a day's worth. The tolerable upper intake level for choline is 3,500 mg/day.
SafetyHigh doses cause a fishy body odour, sweating, nausea, diarrhoea and, above the upper limit, low blood pressure. Gut bacteria convert excess choline to TMAO, which has been linked in observational work to cardiovascular risk — relevant mainly at supplemental doses well above dietary intake. People with trimethylaminuria should avoid supplemental choline.

Scientific references

Where to buy

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