What type of items contain selenium?

Answer 1

Plant foods are the major sources of selenium. Brazil nuts are the best natural source (100 grams of nuts provide about 1917 µg of selenium and 3,485% of recommended daily intake). NOTE: You should eat no more than one Brazil nut per day because of their very high selenium content, which can cause toxicity if you eat too much.

Other good sources include sunflower seeds, macaroni, crimini mushrooms, and whole grains.

The content of selenium in food depends on the selenium content of the soil where plants are grown. For example, soils in the high plains of northern Nebraska and the Dakotas have very high levels of selenium, while soils in some parts of China and Russia have very low amounts of selenium. Likewise, the selenium content of foods can vary. For example, the U.S. Department of Agriculture Food Composition Database lists the selenium content of Brazil nuts as 544 mcg of selenium per ounce, but values from other analyses vary widely.

Answer 2

Selenium is used in Xerox machines because it loses magnetic ability in light. Where it is light on the paper, the selenium drum does not pick up its powder ink for the copy. If it's dark, it does pick up ink for the copy.

Otherwise, it does not have modern purposes except for locoweed. ;)

Answer 3

One of the best sources of selenium in the world are Brazil nuts. Whole wheat bread and canned tuna are also high in selenium.