The Claim
In New Zealand, 69% of fish oil supplements contained less than 67% of the labeled amounts of EPA and DHA, and only 3 out of 32 tested products met or exceeded their labeled content, indicating that mislabeling of active ingredient concentrations is common in this market.
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.
A study found that most fish oil supplements sold in New Zealand contained significantly less of the key omega-3 fatty acids (EPA and DHA) than stated on their labels, with only a small number meeting their advertised content.
See the scientific wording
In New Zealand, 69% of fish oil supplements contained less than 67% of the EPA and DHA claimed on their labels, and only 3 of 32 products met or exceeded their labeled content, indicating widespread mislabeling of active ingredient concentrations.
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 most had way less of the good fats (EPA and DHA) than what was written on the bottle — only a few got it right. So the labels are often lying about what’s inside.
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.