Supplements
Evidence: strong_human
EPA and DHA incorporate into cell membrane phospholipids, modulating membrane fluidity and lipid raft signaling. EPA competitively inhibits arachidonic acid conversion via COX-2 and 5-LOX, reducing pro-inflammatory eicosanoids (PGE2, LTB4) while generating anti-inflammatory resolvins and protectins. DHA is critical for neuronal membrane integrity, modulating BDNF expression and synaptic plasticity via Nrf2 and NF-kB pathways.
Standard: 2-4g combined EPA/DHA daily (targeting 2:1 EPA:DHA ratio for inflammation; 1:1 for cognitive)
Loading: 4-6g/day for 4 weeks
Maintenance: 2-3g/day
Administration: oral
Timing: With meals containing fat for absorption. Split dose AM/PM.
Duration: ongoing
Omega-3 Index blood test target: 8-12%. EPA:DHA ratio matters for indication. Higher EPA for inflammation/mood; higher DHA for cognition/neuroprotection. Rancidity is a major quality concern — check peroxide and anisidine values.
Triglyceride or re-esterified triglyceride form preferred over ethyl ester. IFOS 5-star certified. Molecular distillation for purity. Store refrigerated. Nordic Naturals, Carlson, or pharmaceutical-grade (Lovaza/Vascepa).
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