Fats and oils

Krill oil

Also called: krill

Oil from tiny shrimp-like animals, with omega-3s.

Why people take it
Heart, joints.
What the evidence says
Similar to fish oil; smaller doses of EPA and DHA per capsule.
How it is usually taken
Usually 1 to 3 g a day with food.
Be careful
Shellfish allergy; may add to blood thinners.
Medicines it can interact with
May add slightly to blood thinners; avoid with shellfish allergy.

Other fats and oils

Cod liver oilAlgal oilFlaxseed oilMCT oilConjugated linoleic acidPhosphatidylserineLecithinBlack currant seed oilBorage oilOmega-7Plant sterolsPolicosanolOmega-3 for kids

Common questions

What is Krill oil?

Oil from tiny shrimp-like animals, with omega-3s.

Why do people take Krill oil?

Heart, joints.

Does Krill oil work?

Similar to fish oil; smaller doses of EPA and DHA per capsule.

How much Krill oil do people take?

Usually 1 to 3 g a day with food.

Is Krill oil safe?

Shellfish allergy; may add to blood thinners.

Does Krill oil interact with medicines?

May add slightly to blood thinners; avoid with shellfish allergy.

Sources and further reading

Last reviewed 31 October 2026. Written by Satya Babu.

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For information only, not medical advice. Supplements are not medicines: they are not tested and approved like drugs before they are sold, and they can interact with medicines. Talk to your doctor or pharmacist before you start one, especially if you are pregnant or breastfeeding, take regular medicines, or have kidney, liver or heart disease.