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Algae oil

Omega-3 straight from the source — a vegan EPA/DHA that works as well as fish oil, without the fish.

Reviewed by Bodil Isaksson, Licensed Biomedical Scientist (Sweden)Last reviewed July 2026Supplement guide

SupplementsFatty acidsOmega-3Vegan

Fish don’t make omega-3 — they get it from algae. Algal oil skips the fish entirely and delivers the same preformed EPA and DHA, making it the standout choice for vegans and vegetarians.

Key takeaways

  • Algae is the original source of EPA and DHA in the food chain.
  • Algal oil provides preformed EPA/DHA and raises the omega-3 index like fish oil.
  • It’s far better than plant ALA oils (flax, chia), which convert poorly.
  • Sustainable and contaminant-free; check the EPA+DHA per dose (often lower than concentrated fish oil).

What it is

Oil from cultivated marine microalgae, providing the same long-chain omega-3s (EPA/DHA) as fish — without fishing, mercury worries, or a fishy taste.

The evidence

Algal DHA/EPA is well absorbed and raises blood omega-3 levels comparably to fish oil, unlike ALA from seeds which the body converts inefficiently. It’s the evidence-based way for plant-based eaters to get real EPA/DHA.

Dose

~250–500 mg EPA+DHA/day for general health; more for specific goals. Doses per capsule are often smaller than fish oil, so check the label.

Who benefits

Ideal for vegans, vegetarians, pescatarian-averse eaters, and anyone wanting a clean, sustainable omega-3.

Bottom line: the best vegan omega-3 — real EPA/DHA, not the poorly-converting plant ALA; just check the dose per capsule.

References

Adult research summary for education, not a prescription.

  1. Algal oil provides bioavailable EPA/DHA (vegan omega-3) — overview. www.nordic.com

This article summarises nutrition science for education. It is not a substitute for individual medical advice; consult a professional before starting a supplement, in pregnancy, or alongside medication.