Selenium deficiency refers to not having enough selenium in your system. Symptoms may include fatigue, muscle weakness, and infertility, among others. The amount of selenium in food sources is largely ...

An estimated 500 million to 1 billion people worldwide are affected by selenium deficiency, according to the World Health Organization (WHO). Researchers at Wageningen University & Research (WUR), ...

Just 3 oz of tuna contains 167% of a person’s daily selenium needs. This recipe pairs a spiced, flavorful tuna steak with a nutritious salsa to offer a balanced meal. A serving of 3 oz of light ...

Brazil nuts have a very high selenium content. Fish and shrimp are good sources of selenium. You can also get selenium from ...

Selenium-rich foods, from Brazil nuts to tuna, help maintain thyroid hormone balance, antioxidant defenses, and immune function when consumed in safe amounts. Balancing intake matters: too little ...