May reduce your risk of certain cancers
Selenium helps lessen oxidative stress in addition to reducing the incidence of some malignancies. Selenium's capacity to lessen DNA damage and oxidative stress, strengthen your immune system, and eliminate cancer cells has been credited with this. Having a high blood level of selenium was linked to a lower risk of several cancers, including breast, lung, colon, and prostate cancers, according to a study of 69 studies involving over 350,000 participants.
It's important to remember that this impact was only linked to selenium that was consumed naturally through food rather than supplements. However, some data indicate that selenium supplementation may lessen negative effects in patients receiving radiation therapy. For instance, one study revealed that giving women with uterine and cervical cancer oral selenium supplementation enhanced their general quality of life and decreased radiation-induced diarrhea.

