Selenium, a powerful antioxidant, offers numerous health benefits that contribute to overall well-being. It plays a critical role in healthy metabolism and helps to protect our body from damage caused by oxidative stress. Selenium is also a powerful immune booster.

The two primary forms are organic and inorganic selenium. Organic selenium includes selenomethionine and selenocysteine, which can be found in food sources. Inorganic selenium comes in two main forms: selenate and selenite, often found in water or supplements. Both types of selenium have their unique benefits

Generally, for most adults, the daily intake should not exceed 400 mcg. The average dosage typically falls between 55 mcg to 200 mcg per day. Pregnant or breastfeeding women may require slightly higher amounts.

Selenium, a chemical element with the symbol Se and atomic number 34, was first discovered in 1817 by Swedish chemist Jöns Jakob Berzelius. The discovery occurred when Berzelius noticed an unusual substance that had been produced during the sulfuric acid manufacturing process. Upon further investigation, this substance was identified as selenium, named after Selene, the Greek goddess of the moon. Selenium's unique properties quickly made it a subject of interest among scientists; its photoconductivity particularly stood out, which led to its use in photocopiers and solar cells. Over the years, research has revealed selenium's vital role in human health, including its antioxidant properties.

Common symptoms of selenium deficiency may include muscle weakness or pain, discoloration of the hair or skin, and white spots on the nails. In more severe cases, one might experience mental fog or confusion.

Selenium can be found in seafood such as oysters, tuna, and halibut; meats like turkey and chicken; whole grains, sunflower seeds, mushrooms, and certain types of nuts (especially Brazil nuts); dairy products; and eggs.