Omega-3 (EPA/DHA) Half-Life & Clearance

Understand how long Omega-3 (EPA/DHA) stays in your bloodstream, its metabolic pathways, and how to time your doses optimally.

Standard Pharmacokinetics

Chart represents a single standard dose processed by a normal metabolizer over 24 hours.

Key Metrics

55 hrs

Average Half-Life

+5 hrs

Time to Peak (Tmax)

MUST be taken with food containing fat; absorption increases 3–4× with a high-fat meal

Food interaction

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See how Omega-3 (EPA/DHA) overlaps with caffeine, modafinil, and your target bedtime.

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Metabolism & Excretion

Pathway

Incorporated into cell membrane phospholipids; slow turnover via phospholipase A2

Elimination

Beta-oxidation to CO2 and water (energy production); some via feces

Important Nuances

Plasma EPA/DHA peaks at 5–6 hours with food. The functionally relevant pool is membrane-incorporated omega-3s, which have a much longer turnover time (weeks). Benefits (anti-inflammatory, brain health) accrue over months of consistent supplementation.

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