A marine omega-3 supplement derived from Antarctic krill (Euphausia superba), containing EPA and DHA bound to phospholipids rather than triglycerides. Also contains the antioxidant astaxanthin, which may help prevent oxidation of the fatty acids.

How many studies on Krill Oil are available?

NutriVouch references 69 human studies on Krill Oil, all peer-reviewed and indexed on PubMed.

Is Krill Oil effective for Heart Health?

For Heart Health, Krill Oil has an effectiveness score of 5/10 — moderate evidence — works in some populations. Based on 15 relevant studies.

Is Krill Oil effective for Anti-Inflammation?

For Anti-Inflammation, Krill Oil has an effectiveness score of 4/10 — weak or limited clinical evidence. Based on 13 relevant studies.

Is Krill Oil effective for Antioxidant Protection?

For Antioxidant Protection, Krill Oil has an effectiveness score of 4/10 — weak or limited clinical evidence. Based on 8 relevant studies.

Is Krill Oil effective for Cholesterol Management?

For Cholesterol Management, Krill Oil has an effectiveness score of 4/10 — weak or limited clinical evidence. Based on 26 relevant studies.

Is Krill Oil effective for Joint Health?

For Joint Health, Krill Oil has an effectiveness score of 4/10 — weak or limited clinical evidence. Based on 7 relevant studies.

Confidence level

Moderate evidence

69 studies

Krill Oil

Last reviewed: 4/3/2026

How to take Krill Oil

✦Take with a fat-containing meal. The phospholipid-bound form may offer enhanced bioavailability compared to standard fish oil triglycerides. Store in a cool place to preserve astaxanthin.