Compound · fish-oil-epa-dha
T1Supplement

Fish Oil (EPA/DHA)

Long-chain omega-3 polyunsaturated fatty acids that integrate into cell membrane phospholipids, altering membrane fluidity and lipid raft signaling. EPA competes with arachidonic acid for COX and LOX enzymes, shifting eicosanoid production from pro-inflammatory prostaglandins toward anti-inflammatory resolvins and protectins. DHA is the primary structural omega-3 in neuronal membranes. Both activate PPARs and suppress NF-kB-mediated inflammatory gene transcription.

Half-life
~50 hours (EPA/DHA in plasma phospholipids)
Bioavailability
~70-80% (oral, triglyceride form; ~30-50% ethyl ester form)
Route
oral
Evidence tier
T1 — Multiple RCTs
Optimization pillars
cellular-health · recovery · anti-aging
References
2 peer-reviewed
Dose ranges

Three tiers ordered by aggressiveness. Tier chips on every OPTIMIZE intervention let you filter the catalog by your evidence tolerance.

conservative
1000–2000 mg combined EPA+DHA/day
General health and anti-inflammatory
moderate
2000–3000 mg combined EPA+DHA/day
Cardiovascular and inflammatory marker optimization
aggressive
3000–4000 mg combined EPA+DHA/day
Clinical triglyceride reduction (REDUCE-IT protocol)
Monitoring
  • triglycerides
  • lipid-panel
  • hs-crp
Contraindications
  • fish-allergy
  • bleeding-disorder-severe
  • anticoagulant-high-dose
References
  • PMID:30415628Cardiovascular Risk Reduction with Icosapent Ethyl for Hypertriglyceridemia (REDUCE-IT)N Engl J Med, 2019
  • PMID:29588166Marine omega-3 supplementation and cardiovascular disease: an updated meta-analysisEur Heart J, 2018
Notes

Fish oil is the anti-inflammatory foundation. The REDUCE-IT trial settled the cardiovascular debate — 4g of icosapent ethyl (pure EPA) reduced cardiovascular events by 25% in statin-treated patients with elevated triglycerides. The form matters. Triglyceride-form fish oil absorbs 2-3x better than ethyl ester form. You need 2-4g of combined EPA+DHA, not 2-4g of total fish oil. Read the label. The anti-inflammatory mechanism is direct substrate competition — more EPA in membranes means less arachidonic acid available for inflammatory eicosanoid production.

This is not medical advice

Discuss with a licensed clinician before starting, stopping, or changing any compound. This page documents what the research literature describes — it is not a prescription.

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