Dr. Rhonda Patrick on health: what the evidence says · JRE #1054
SUBJECT: HEALTH
The short answer
Rhonda Patrick claims phospholipid-form DHA (found in fish roe) reaches the developing fetal brain ten times more effectively than standard free-fatty-acid-form DHA. The specific "10 times" figure for fetal brain uptake is not supported by available research: a controlled pregnancy study in pigs directly comparing phospholipid versus triglyceride DHA found similar fetal brain DHA accretion despite different placental uptake patterns.
Not a true/false call. Every claim is logged with its sources; read the exhibits below.
That has been shown to get into the developing fetal brain 10 times better than DHA and non-phospholipid form, free fatty acid form.
What the evidence says 01 / RECORD
Rhonda Patrick claimed phospholipid-form DHA reaches the developing fetal brain ten times more effectively than free-fatty-acid-form DHA. The specific "10 times" figure for fetal brain uptake is not supported by available research: a controlled pregnancy study in pigs directly comparing phospholipid versus triglyceride DHA found similar fetal brain DHA accretion despite different placental uptake patterns. The closest supporting evidence is a 2017 mouse study reporting roughly a two-fold (not ten-fold) increase in brain DHA from a phospholipid carrier (lysophosphatidylcholine-DHA) compared with free DHA, but that study was in adult mice, not a fetal or pregnancy model. A 2025 replication attempt of that mouse study found no significant increase in brain DHA from the phospholipid form compared with controls. Overall, evidence for phospholipid-DHA's brain bioavailability advantage over free-fatty-acid DHA is mixed and unreplicated even in animal models, and no study establishes a tenfold fetal brain uptake advantage in humans or animals.