How Fish-Derived Lysophosphatidylcholine Delivers Omega-3s to the Brain

This review looks at lysophosphatidylcholine (LPC), a special carrier form of omega-3 fatty acids found in marine phospholipids. Unlike typical fish oil triglycerides, LPC binds omega-3s like DHA and EPA in a structure that appears to be absorbed and transported into the brain more efficiently.

The researchers explain that a transporter protein called Mfsd2a, found in the blood-brain barrier, specifically recognizes one form of LPC (called 2-LPC) and helps shuttle DHA into brain tissue. This may explain why marine-based phospholipids seem more effective at supporting brain-related functions than plant or terrestrial phospholipid sources, which contain much less long-chain omega-3 content.

The paper also reviews how LPC can be extracted and produced using enzymes like lipases, and notes that common food processing methods such as heating, fermentation, and freezing can reduce phospholipid levels in fish. Overall, the authors describe LPC as a promising delivery form for omega-3s but note that more safety research is still needed.