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Phosphatidylcholine (PC)

Phosphatidylcholine (PC) structure

Overview

Phosphatidylcholine (PC) is a major phospholipid that is central to neuronal membrane structure and function. It plays a crucial role in membrane fluidity, neurotransmitter receptor function, and serves as a carrier for DHA and EPA. When DHA or EPA are incorporated into PC and converted to lysophosphatidylcholine (LPC), they cross the blood-brain barrier far more efficiently than free fatty acid or triglyceride-bound forms. PC is also involved in acetylcholine synthesis pathways and is a key component of the phospholipid methylation process that influences ion channel behavior and gamma oscillations linked to attention and cognition. Food sources include eggs, fish roe, and liver, and choline intake supports PC synthesis.

Recipes

2 recipes containing this substance

Foods

6 foods containing this substance

Mussels

Nutrient-dense bivalve providing phospholipid-bound omega-3s; accepted by some vegans (ostroveganism)

Oysters

Highest zinc content among common foods; unique source of phospholipid-bound omega-3s; accepted by some vegans (ostroveganism)

Salmon Roe

Premium salmon (ikura) eggs — phospholipid-bound EPA/DHA and choline

Soy Lecithin

Concentrated choline source for phosphatidylcholine synthesis

Trout Roe

Rainbow trout eggs — phospholipid omega-3s; typically mid-tier vs salmon ikura

Biological Mechanisms and Implications

Biological TargetTherapeutic AreasMechanism of Action
Neurotransmitter RegulationMajor neuronal membrane phospholipid central to membrane fluidity, receptor function, and acetylcholine synthesis; DHA/EPA incorporated into PC are converted to lysophosphatidylcholine (LPC), a key transport form across the BBB

References

  • DHA or EPA incorporated into PC and converted into lysophosphatidylcholine (LPC) crosses the blood-brain barrier far more efficiently than free fatty acid or triglyceride-bound forms Patrick 2019
  • Phospholipid-bound omega-3s (krill oil, fish roe) were approximately 1.9× more efficacious for gray matter DHA in porcine models Liu et al. 2014
  • Food sources supporting PC: eggs, fish roe, liver; choline intake supports PC synthesis