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← All supplements
Omega-3 & fatsModerate evidence

Cod liver oil

Also known as: cod oil

A traditional oil from cod liver that naturally contains vitamins A and D alongside EPA and DHA. The vitamin A content is why total intake must be watched.

What it is used for

  • Vitamin D supply in winter – moderate evidence
  • Omega-3 for the heart – moderate evidence depending on EPA+DHA
  • Fewer respiratory infections – weak evidence

Forms and how they differ

liquid oil

traditional form, often lemon-flavoured

capsules

more convenient, lower dose per piece

When to take it

With food, ideally morning or midday.

Pairs well with

A diet with calcium and vitamin K.

Do not combine / separate

Do not combine with a multivitamin or other vitamin A and D products without totalling the dose.

Watch out for

Pregnant women should avoid high vitamin A intake – use only after medical advice. Caution with blood thinners and liver disease. Consult your doctor or pharmacist if you are pregnant, breastfeeding, have kidney or liver disease or take any medicines.

Safety

EFSA's tolerable upper intake for adults is 3000 µg per day for vitamin A (retinol) and 100 µg per day for vitamin D from all sources. Do not exceed the label dose.

Practical tip

Check vitamin A and D per serving and add it to your other supplements.

Products containing Cod liver oil 2

Cod liver oil 2000 mgcod liver oil · 2 000 mg / servingBonesImmunityHeart & vesselsEyes
Cod liver oilBonesImmunityHeart & vesselsEyes
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence

Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.

Combination check

Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.

Check Cod liver oil with others

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From the same group

AlkylglycerolsWeak evidenceBlackcurrant seed oilWeak evidenceBorage oilWeak evidenceEvening primrose oilWeak evidenceFlaxseed oilWeak evidenceKrill oilModerate evidence
Important notice

This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.