The most common animal viscera, such as pig liver, chicken liver, sheep liver and cattle liver, are often rich in selenium.

The second kind of food is seafood, such as oysters, scallops, abalone, etc., which can also provide rich selenium for the body.

The third kind of food is lean meat of animals, such as lean pork, lean beef and lean mutton. These lean muscles can contain a lot of selenium.

The fourth kind of food is coarse grains, such as barley, oats, buckwheat and sorghum, which are also rich in selenium.