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Omega-3 triglyceride form (rTG)

Cardiovascular · Absorption · Quality
Tier 2 — Promising

What it is

Most cheap fish oils use the ethyl ester (EE) form, but rTG absorbs about 70% better. A 2024 review confirmed rTG fish oil produces significantly higher blood EPA and DHA levels than the same EE dose. No rTG-specific outcome RCTs exist, but superior bioavailability supports better dose efficiency for cardiovascular goals.

Efficacy
3/5
Safety
4/5
Research
3/5
Onset
3/5
Cost
3/5
Drug-int.
3/5

Dose

1–4 g/day EPA+DHA in rTG form; ~70% better absorbed than ethyl ester form

Time of day & tips

Take with a fatty meal for best absorption. Refrigerate after opening. Morning with breakfast is ideal. Avoid large doses close to surgery due to blood-thinning effects.

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