Choline (bitartrate vs alpha-GPC vs phosphatidylcholine) and brain & focus
What 5 graded rows on choline (bitartrate vs alpha-gpc vs phosphatidylcholine) agree on for brain & focus, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Choline (bitartrate vs alpha-GPC vs phosphatidylcholine) page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Choline (bitartrate vs alpha-GPC vs phosphatidylcholine) page, with its PubMed record.
Your question
Choline (bitartrate vs alpha-GPC vs phosphatidylcholine) and brain & focus
5 rows · 568 peopleSplit. 2 rows found an improvement, 2 found no difference and 1 had mixed results.
- CGrade C× 2
- DGrade D× 3
- Rows
- 5
- Trials
- 5
- At least: a review without a trial count
- People
- 568
- Pooled reviews may count some twice
Where they differ
From the rowsThe best-graded row, grade C, is a systematic review of 376 people (2003) and found no difference.
The 2 rows that found no difference were larger: a median of 238 people, against a median of 26 people for the 2 rows that found an improvement.
Only the 2 rows that found no difference include pooled reviews of several trials (1 of 2); the 2 rows that found an improvement are single studies.
The 2 rows that found an improvement are newer (2015 to 2018) than the 2 rows that found no difference (2003 to 2012).
The best grade is C among the rows that found no difference, and D among the rows that found an improvement.
1 row with mixed results is left out of this comparison.
The rows
2 improved · 2 no difference · 1 mixed- DGrade DVisuomotor aiming precision after a single dose · Improved
Crossover RCT · n 28 · 2015 · Healthy adult volunteers
two grams of choline bitartrate, single dose · Single session, tested 70 minutes after intake
Participants hit targets more centrally after choline than placebo, and pupil size decreased, suggesting a shift toward precision over speed.
Row on the Choline (bitartrate vs alpha-GPC vs phosphatidylcholine) page · PubMed 26271904 (opens PubMed)
- DGrade DInfant information processing speed (930 vs 480 mg/day in late pregnancy) · Improved
RCT · n 24 · 2018 · Women in the third trimester of pregnancy in a controlled feeding study; infants tested at 4, 7, 10 and 13 months
480 mg vs 930 mg choline/d total intake · Third trimester until delivery
Infants of mothers in the 930 mg/d group had faster mean reaction times than those in the 480 mg/d group.
Row on the Choline (bitartrate vs alpha-GPC vs phosphatidylcholine) page · PubMed 29217669 (opens PubMed)
- CGrade CClinical outcomes with lecithin in dementia and memory complaints · No difference
Systematic review · n 376 · 2003 · Patients with Alzheimer's disease (265), Parkinsonian dementia (21) or subjective memory problems (90) in 12 randomized trials
Varied across trials · Varied across trials
No trial reported a clear clinical benefit of lecithin for Alzheimer's disease or Parkinsonian dementia; one trial in people with subjective memory problems reported a large benefit.
Row on the Choline (bitartrate vs alpha-GPC vs phosphatidylcholine) page · PubMed 12917896 (opens PubMed)
- CGrade CInfant memory, language and development after prenatal phosphatidylcholine · No difference
RCT · n 99 · 2012 · Pregnant women eating moderate-choline diets (about 360 mg/day); infants tested at 10 and 12 months
750 mg phosphatidylcholine daily · From 18 weeks of pregnancy through 90 days after birth
No significant differences in global development, language, short-term visuospatial memory or long-term episodic memory. Supplements were well tolerated.
Row on the Choline (bitartrate vs alpha-GPC vs phosphatidylcholine) page · PubMed 23134891 (opens PubMed)
- DGrade DMemory in healthy older adults · Mixed
RCT · n 41 · 2023 · Healthy Japanese adults aged 60–80 without dementia
300 mg/day choline · 12 weeks
Verbal memory scores improved more than placebo at 6 and 12 weeks, but processing speed, symbol-digit coding and physical quality-of-life scores were lower than placebo at 6 weeks.
Row on the Choline (bitartrate vs alpha-GPC vs phosphatidylcholine) page · PubMed 37340479 (opens PubMed)