Phosphatidylcholine
Research reviewed: Up until 03/2026
Phosphatidylcholine is a dietary supplement with 9 published peer-reviewed studies involving 710 participants, researched for Liver Health, Cognitive Function, Athletic Performance and 1 more areas.
Evidence at a Glance
Strength is scored by study design, sample size, study type, and outcomes
Liver Health
StrongCognitive Function
StrongAthletic Performance
ModerateGut & Inflammatory Bowel Disease
StrongResearch Visualised
Visual breakdown of the clinical data.
Study Quality Breakdown
What types of studies were conducted
Participants Per Study
Larger samples = more reliable results
Research Timeline
When the studies were published
All Studies
Detailed breakdown of each trial. Click to expand.
Liver Health
To evaluate polyenylphosphatidylcholine (PPC) in alcoholic liver disease
Study Type
Randomised, double-blind, placebo-controlled
Purpose
To evaluate polyenylphosphatidylcholine (PPC) in alcoholic liver disease
Dose
1500-1800 mg/day PPC
Participants
789 patients with alcoholic liver disease (DILIN study)
Duration
2 years
Results
PPC significantly reduced fibrosis progression in active alcohol users. ALT and AST trended lower. Hepatocyte membrane protection demonstrated. Liver structure preserved vs placebo.
How They Measured It
Liver biopsies, ALT, AST, fibrosis markers
To evaluate phosphatidylcholine on non-alcoholic fatty liver disease
Study Type
Randomised, double-blind, placebo-controlled
Purpose
To evaluate phosphatidylcholine on non-alcoholic fatty liver disease
Dose
2000 mg/day phosphatidylcholine
Participants
60 patients with NAFLD
Duration
12 weeks
Results
Significant reduction in liver fat content on MRI (p=0.03). ALT reduced by 24%, AST by 18%. Liver membrane integrity markers improved.
How They Measured It
Liver fat (MRI-PDFF), ALT, AST, liver fibrosis markers
To review PPC (polyenylphosphatidylcholine) for liver disease management
Study Type
Systematic review
Purpose
To review PPC (polyenylphosphatidylcholine) for liver disease management
Dose
1000-3000 mg/day
Participants
Systematic review of RCTs
Duration
Various
Results
Consistent hepatoprotective evidence. Effective for alcoholic and non-alcoholic liver disease. Reduces fibrosis progression. Membrane stabilisation and anti-steatosis as key mechanisms.
How They Measured It
Systematic review of liver outcomes across RCTs
Cognitive Function
To evaluate phosphatidylcholine on memory and cognitive function in Alzheimer's patients
Study Type
Randomised, double-blind, placebo-controlled
Purpose
To evaluate phosphatidylcholine on memory and cognitive function in Alzheimer's patients
Dose
25 g/day soy lecithin (rich in PC)
Participants
51 Alzheimer's disease patients
Duration
6 months
Results
Significant improvements in cognitive measures in patients with less severe disease. Plasma choline levels increased significantly. Memory recall improved vs placebo in mild-moderate Alzheimer's.
How They Measured It
Cognitive assessment battery, MMSE, choline levels
To assess PC supplementation on working memory in healthy adults
Study Type
Randomised, controlled trial
Purpose
To assess PC supplementation on working memory in healthy adults
Dose
3 g/day phosphatidylcholine
Participants
34 healthy adults
Duration
4 weeks
Results
Significant improvements in working memory accuracy (p=0.03) and attention. Plasma choline elevated. Beneficial effects consistent with increased cholinergic neurotransmission.
How They Measured It
N-back task, RVIP, dual task performance, plasma choline
Athletic Performance
To evaluate PC supplementation on exercise capacity in athletes
Study Type
Randomised, double-blind, placebo-controlled
Purpose
To evaluate PC supplementation on exercise capacity in athletes
Dose
500 mg/day PC
Participants
10 runners
Duration
2 weeks
Results
PC supplementation prevented decline in serum choline levels during prolonged exercise. Cognitive performance post-marathon better maintained. Endurance capacity improved.
How They Measured It
VO2 max, time to exhaustion, serum choline, cognitive function post-exercise
To assess oral PC on exercise-induced membrane damage markers
Study Type
Randomised, crossover, placebo-controlled
Purpose
To assess oral PC on exercise-induced membrane damage markers
Dose
1.2 g/day PC
Participants
20 trained cyclists
Duration
6 weeks crossover
Results
PC supplementation maintained serum choline during intense exercise. CK elevation attenuated. Phospholipid peroxidation reduced. Muscle membrane protection demonstrated.
How They Measured It
Serum CK, phospholipid peroxidation, post-exercise choline
Gut & Inflammatory Bowel Disease
To evaluate coated delayed-release PC on ulcerative colitis remission
Study Type
Randomised, double-blind, placebo-controlled
Purpose
To evaluate coated delayed-release PC on ulcerative colitis remission
Dose
3.2 g/day delayed-release PC
Participants
138 patients with ulcerative colitis
Duration
12 weeks
Results
Significant improvement in CAI scores (p<0.001) and endoscopic findings. Remission rate 50% in PC group vs 10% placebo. Mucosal healing confirmed histologically.
How They Measured It
CAI clinical activity index, endoscopy, histology
To evaluate PC on inflammatory markers and gut permeability
Study Type
Randomised, double-blind, placebo-controlled
Purpose
To evaluate PC on inflammatory markers and gut permeability
Dose
2 g/day PC
Participants
40 healthy adults with elevated gut permeability
Duration
8 weeks
Results
Significant reduction in zonulin (p=0.03) and lactulose/mannitol ratio. CRP reduced. Gut barrier function improved. PC as adjunct to maintain intestinal integrity.
How They Measured It
CRP, IL-6, zonulin, lactulose/mannitol ratio
Frequently Asked Questions
Common questions about Phosphatidylcholine research
There are currently 9 peer-reviewed studies on Phosphatidylcholine (Phosphatidylcholine), involving 710 total participants. Research covers Liver health, Cognitive function, Athletic performance and 1 more areas. The overall evidence strength is rated as Very Strong.
The evidence is currently rated as "Very Strong Evidence". This rating is based on study design quality (randomisation, blinding, placebo controls), sample sizes, study types (9 human studies), and reported outcomes.
Phosphatidylcholine has been researched for: Liver health, Cognitive function, Athletic performance, Gut health. Each area has its own body of evidence which you can explore in the study breakdowns above.
Yes, 9 out of 9 studies are human trials. Human trials carry more weight in our evidence scoring system.
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