The Claim
Among fish oil supplements available in New Zealand, 9% (3 of 32) contained EPA and DHA levels equal to or higher than labeled amounts, and 69% contained less than 67% of the claimed omega-3 fatty acid content.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In New Zealand, most fish oil supplements contain significantly less EPA and DHA than stated on their labels, with only 9% meeting or exceeding the labeled amounts.
See the scientific wording
Among fish oil supplements available in New Zealand, only 9% (3 of 32) contained EPA and DHA levels equal to or higher than labeled amounts, with 69% containing less than 67% of the claimed content, indicating widespread mislabeling of omega-3 fatty acid concentrations in commercial supplements.
When fish oil is exposed to air, light, or heat during manufacturing or storage, the omega-3 fats break down chemically, turning into useless compounds and leaving less of the active EPA and DHA than what the bottle claims.
What the research says
1 studyStudy: Fish oil supplements in New Zealand are highly oxidised and do not meet label content of n-3 PUFA
Scientists tested fish oil pills sold in New Zealand and found that most had way less of the good omega-3 fats (EPA and DHA) than what was printed on the bottle — nearly seven out of ten had less than two-thirds of what they promised.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.