The Claim
Laboratory analysis of 12 dietary supplements marketed for brain health and cognitive performance revealed that 10 products (83%) contained at least one compound not reported on the Supplement Facts label, with an average of 3.3 unlisted ingredients per product.
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.
Researchers tested 12 brain health supplements and found that most of them had hidden ingredients not listed on the label - about 83% had at least one secret compound, averaging over 3 hidden ingredients per bottle.
See the scientific wording
Among 12 dietary supplements marketed for brain health and cognitive performance selected for analysis, 10 products (83%) contained at least one compound detected through laboratory analysis that was not reported on the Supplement Facts label, with an average of 3.3 unlisted ingredients per product
What the research says
1 studyStudy: A Public Health Issue: Dietary Supplements Promoted for Brain Health and Cognitive Performance
The study looked at 12 brain health supplements and found that 10 of them (83%) had ingredients not listed on the label - exactly matching what the claim says. This confirms that supplement labels are often misleading about what's actually in the product.
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.