The Claim
Walnuts, pecans, and chestnuts contain among the highest concentrations of total antioxidants of any dietary plant foods, with walnuts exceeding 20 mmol of antioxidants per 100 grams, primarily concentrated in the pellicle (skin).
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.
Walnuts, pecans, and chestnuts have some of the highest levels of antioxidants found in plant-based foods, with walnuts containing more than 20 millimoles of antioxidants per 100 grams, mostly in their outer skin.
See the scientific wording
Walnuts, pecans, and chestnuts contain among the highest concentrations of total antioxidants of any dietary plant foods, with walnuts exceeding 20 mmol of antioxidants per 100 grams, primarily concentrated in the pellicle (skin).
When walnuts, pecans, or chestnuts are eaten, antioxidants from their skins enter the bloodstream and directly bind to harmful molecules called free radicals, preventing them from damaging cells and blood vessels. This stops a chain reaction of cell damage that leads to inflammation and disease.
What the research says
1 studyStudy: Health benefits of nuts: potential role of antioxidants
The study says walnuts, pecans, and chestnuts have more antioxidants than most other nuts, and walnuts have over 20 millimoles of antioxidants per 100 grams—mostly in their skin—just like the claim says.
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.