Fatty Acid
Wild Cod Liver Oil
Also known as: cod liver oil, CLO, gadidae oil
A nutrient-dense oil from wild Atlantic cod (Gadus morhua) livers, naturally rich in EPA, DHA, vitamin A, and vitamin D3. Traditionally used for joint health and immune support.
Primary uses
- omega-3 supplementation
- joint and bone support
- immune function
- vision and skin health
How it works
- provides preformed EPA/DHA reducing need for conversion
- supplies fat-soluble vitamins (A and D3)
- reduces systemic inflammation through omega-3 content
- supports membrane integrity
Dosage
- Typical range
- 1-3 grams daily of cod liver oil (providing 180-540 mg EPA and 120-360 mg DHA approximately)
- Timing
- with meals containing additional fat for optimal absorption
- With food
- recommended to reduce GI upset and improve absorption
- Duration
- safe for long-term continuous use; fat-soluble vitamins accumulate over time
- Special populations
- pregnant women should verify vitamin A content does not exceed safe limits; individuals on anticoagulants should monitor intake
Forms
- liquid oil· 70/100
- capsules· 70/100
- softgels· 70/100
Safety
Common side effects
- fishy aftertaste
- mild GI upset
- nausea (especially on empty stomach)
Contraindications
- allergy to fish or shellfish
- bleeding disorders (high-dose)
- scheduled surgery (may increase bleeding risk)
Evidence notes
Cod liver oil has good clinical evidence for omega-3 and vitamin benefits, though newer purified fish oils have more extensive RCT data. Traditional use and composition well-documented.
Grade B: Some human trials support key claims; further confirmation needed.
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