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Omega-3 Index Testing in Red Blood Cells
Measure omega-3 status with a red blood cell omega-3 index test rather than a short-term plasma level, since RBCs reflect longer-term intake. If you start supplementing, wait about 120 days before retesting because red blood cells take roughly that long to turn over, making follow-up results more meaningful.
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“So if you're going to do a baseline test, if you want to know before supplementing what your level is, you have to wait 120 days before doing the second test after supplementing to know how much you went up because that's how long it takes for your red blood cell to turn over.”
huberman · Essentials: Micronutrients for Health & Longevity | Dr. Rhonda Patrick · Jan 1, 2026 · 10:22 · open ↗
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