The Claim
Brazil nuts and selenomethionine supplements produce similar increases in plasma selenium and plasma glutathione peroxidase activity over a 12-week period in healthy adults, indicating comparable bioavailability of selenium from these two sources.
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.
Eating Brazil nuts and taking selenomethionine supplements for 12 weeks raises levels of selenium and glutathione peroxidase in the blood by the same amount, showing that both sources deliver selenium to the body equally effectively.
See the scientific wording
Brazil nuts and selenomethionine supplements produce similar increases in plasma selenium and plasma glutathione peroxidase activity over 12 weeks, indicating comparable bioavailability of selenium from these two sources in healthy adults.
Selenium from Brazil nuts or selenomethionine supplements is absorbed in the gut, converted into a usable form, and built into the glutathione peroxidase enzyme, which then works better to neutralize harmful molecules in the blood.
What the research says
1 studyStudy: Brazil nuts: an effective way to improve selenium status.
Eating two Brazil nuts every day raised selenium levels and antioxidant activity in the blood just as much as taking a selenium pill for 12 weeks — so your body uses selenium from nuts almost as well as from a supplement.
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.