Brazil nuts are high in which mineral linked to prostate cancer prevention?

• A. Magnesium
• B. Selenium
• C. Zinc
• D. Iron

Answer: (B)

Selenium is an essential trace mineral that supports antioxidant enzymes (selenoproteins) which help protect cells from oxidative damage. Adequate selenium intake has been studied for cancer prevention, including prostate cancer. Brazil nuts are among the richest natural sources of selenium; even a single nut can supply a sizable portion of daily needs, so they’re often cited as a dietary way to boost selenium status. Among the minerals listed, selenium has the strongest association with prostate cancer prevention in nutrition discussions. Magnesium, zinc, and iron play important roles in other bodily functions but aren’t the mineral most commonly linked to reducing prostate cancer risk. For context, the adult daily intake target is about 55 micrograms; typically one to two Brazil nuts per day meet the requirement, while consuming too many can lead to selenium excess.