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1Essential

Algal DHA

Also sold as Vegan omega-3, algae oil

The only reliable long-term EPA/DHA source on a plant-based diet.

TrustedSupp Tier System™ · Tier 1Take persistently
Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.

Evidence strength

80/100Strong
WEAKLIMITEDMODERATESTRONGVERY STRONG

What the evidence supports: raising DHA levels in people who eat no fish.

This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.

How long to take it

Ongoing for anyone eating no fish. The gap does not close on its own.

Who it's actually for

Vegans, vegetarians, and anyone who dislikes or avoids fish.

Safe upper limit

Unverified
Treat as equivalent to fish oil — about 3 g EPA+DHA per day
Same blood-thinning consideration as fish oil at high doses.
No source or citation attached yet.

Interactions to know about

Other supplements:

Run your full list through the interaction check.

Practical notes

  • Look for a stated DHA figure; many products are dilute.
  • Pregnancy raises DHA needs specifically.