Food Sources

"Organ meats, muscle meats, and seafood have the highest selenium content. Plants do not require selenium, so the selenium content in fruits and vegetables is usually low. Animals fed grains from selenium-rich soils do contain some selenium. Grains and some nuts contain selenium when grown in selenium-containing soils. Selenium contents of various foods include: Brazil nuts, 1 ounce, 544 micrograms; shrimp, 3 ounces, 34 micrograms; crab meat, 3 ounces, 41 micrograms; ricotta cheese, 1 cup, 41 micrograms; salmon, 3 ounces, 40 micrograms; pork, 3 ounces, 35 micrograms; ground beef, 3 ounces, 18 micrograms; round steak, 3 ounces, 28.5 micrograms; beef liver, 3 ounces, 28 micrograms; chicken, 3 ounces, 13 micrograms; whole-wheat bread, 2 slices, 23 micrograms; couscous, 1 cup, 43 micrograms; barley, cooked, 1 cup, 13.5 micrograms; low-fat milk, 1 cup, 8 micrograms; and black walnuts, 1 ounce, 5 micrograms."