howtosupplement
Inflammation/Digestion/Heart

Phosphatidylcholine

Phospholipid found in cell membranes that supports gut barrier integrity and liver health, primarily studied in people with inflammatory bowel disease or fatty

Phosphatidylcholine

Phosphatidylcholine

58
score
B
evidence
Safe
risk
Quick Take

Worth considering for liver or gut barrier issues; as a general choline source, it is less bioavailable than alpha-GPC or CDP-choline.

Phosphatidylcholine is a phospholipid abundant in cell membranes and a dietary source of choline, found in eggs, soy, and sunflower seeds. Supplements are typically derived from lecithin. Polyenylphosphatidylcholine (PPC) is a concentrated, polyunsaturated-rich extract. It integrates into cellular membranes, supports intestinal mucus barrier integrity, and provides choline for lipid metabolism and methylation. Clinical trials suggest it may help maintain ulcerative colitis remission, lower liver enzymes in NAFLD, and modestly affect cholesterol and homocysteine. It is most relevant for people

Proven Benefits

01
Reduces liver enzymes in NAFLD
02
Supports gut barrier in colitis
03
May lower LDL cholesterol
04
May reduce liver fibrosis markers
05
May lower homocysteine

Protocol

Amount
900-1800 mg
Frequency
Once or twice daily
When
With meals to improve absorption and reduce gastrointestinal discomfort.

Onset Time

4-12 weeks for gut and liver biomarkers; acute choline effects are not typical.

Who Should Consider

People with NAFLD or elevated liver enzymes
Individuals with ulcerative colitis (under medical guidance)
Those with low dietary choline intake (vegans, low-egg diets
Adults seeking a phospholipid-rich choline source

Food Sources

  • Egg yolks (~150 mg PC per large egg)
  • Soybeans and soy lecithin (~10-15% PC by weight)
  • Sunflower seeds and sunflower lecithin
  • Beef liver and chicken liver
  • Fish roe

How It Works

Phosphatidylcholine integrates into cell membranes and organelle membranes, influencing membrane fluidity and signaling. It is a source of choline for acetylcholine synthesis and hepatic phospholipid metabolism. In the gut, it enriches the mucus layer’s hydrophobic barrier, limiting bacterial translocation and mucosal inflammation. In the liver, polyenylphosphatidylcholine appears to attenuate oxi

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