Krill oil

Krill Oil

Krill oil is a supplement that is rapidly gaining popularity as a superior alternative to fish oil. It's derived from krill, a small, shrimp-like crustacean found in the Antarctic ocean. The oil extracted from krill is rich in omega-3 fatty acids, which are essential for heart, brain, and joint health.

Category

Nutritional Supplement

Molecular Formula

Not applicable

Mechanism of Action

Krill oil contains omega-3 fatty acids in phospholipid form, which is thought to be more easily absorbed by the body. It also contains a potent antioxidant called astaxanthin.

Evidence Grade

C

Other Names

• Euphausia superba
• Antarctic Krill Oil

Primary Benefits

• Improves heart health
• Supports brain function
• Promotes joint health
• May reduce inflammation

Recommended Dosage

Side Effects

• Fishy aftertaste
• Stomach discomfort
• Loose stools
• Allergic reactions

Precautions

• People with seafood allergies should avoid krill oil
• Do not take if you are on blood-thinning medications
• Consult a healthcare provider before use if pregnant or breastfeeding

Interactions

• Anticoagulant or antiplatelet drugs
• Certain herbal supplements like ginkgo biloba and garlic

Key References

• Ulven SM, Kirkhus B, Lamglait A, et al. Metabolic effects of krill oil are essentially similar to those of fish oil but at lower dose of EPA and DHA, in healthy volunteers. Lipids. 2011;46(1):37-46.
• Ramprasath VR, Eyal I, Zchut S, Jones PJH. Enhanced increase of omega-3 index in healthy individuals with response to 4-week n-3 fatty acid supplementation from krill oil versus fish oil. Lipids Health Dis. 2013;12:178.