JUST A BRAZIL NUT NOW AND THEM!
Selenium has many function, even important in our covid age. May prevent many cancers and a lack can cause heart problems

Higher selenium blood levels are associated with improved breast cancer survival rates.*
The 10-year survival rate was 65.1% in women with the lowest selenium blood level.
The 10-year survival rate in women with the highest selenium blood levels was 86.7%.
Editor’s Note: A previous study found that higher selenium levels were linked to improved five-year survival rates in women with breast cancer. The current study included 10-year survival rates in 538 women from the prior study.
* Nutrients. 2021 Mar; 13(3):953