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Compound

Phosphatidylcholine (PC)

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Phosphatidylcholine (PC). Major brain and hepatic phospholipid often given for liver support.

How it works. Structural phospholipid; supports hepatocyte membrane repair and VLDL export.

What the research supports. 1 graded claims. Strongest: Improves liver function in TPN-associated hepatopathy (moderate).

How much to take. Typical dose: 900–1800 mg.

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with Milk thistle (silymarin), NAC, Omega-3 (EPA/DHA).

Common forms. Available as Capsule or softgel, Powder, Sublingual or buccal, Liposomal liquid.

Key studies. 8 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried Phosphatidylcholine (PC). Anecdotes are not medical advice.

Phosphatidylcholine (PC). Major brain and hepatic phospholipid often given for liver support.

No single structure

What it is

Major brain and hepatic phospholipid often given for liver support.

Food sources

Endogenously produced or biosynthesized moleculeStandardized pharmaceutical- or food-grade supplementCombined with cofactors that improve absorption or activity

Goals

Liver HealthBrain & Cognitive

How it works

Structural phospholipid; supports hepatocyte membrane repair and VLDL export.

Pathways

  • Structural phospholipid
  • supports hepatocyte membrane repair
  • VLDL export

Effects

  • +liver function in TPN-associated hepatopathy supports

What the research supports

Improves liver function in TPN-associated hepatopathymoderate

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
900–1800 mg
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodWith food
Best formMost evidence is based on the capsule or softgel form.
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Side effects & interactions

Common side effects

  • GI upset

Medication interactions

Prescription medications (general)minor

Always disclose Phosphatidylcholine (PC) use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • Milk thistle (silymarin)Complementary hepatoprotective antioxidant pathways.
  • NACRestores hepatic glutathione.
  • Omega-3 (EPA/DHA)Membrane fluidity and neuronal signaling support.

Common forms

  • Capsule or softgel
  • Powder
  • Sublingual or buccal
  • Liposomal liquid

Key studies

8 studies cited in total.

PubMed: Phosphatidylcholine (PC) — Improves liver function in TPN-associated hepatopathy ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Phosphatidylcholine (PC) and "Improves liver function in TPN-associated hepatopathy". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Phosphatidylcholine (PC) — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Phosphatidylcholine (PC) and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Phosphatidylcholine (PC) — meta-analysis ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Phosphatidylcholine (PC) and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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