Megan Champagne

What is Selenium?

  • Selenium is an essential mineral which is found in small amounts in the body.
  • It works as an antioxidant, especially when combined with vitamin E. What an antioxidant does is help to fight the damaging particles in the body called free radicals.
  • Free radicals are things that can severely damage the cell membrane as well as DNA, and could potentially contribute to aging and also heart disease and cancer as well as a number of other conditions.
  • Antioxidants can reduce or even prevent the damage of free radicals by neutralizing them.
  • Selenium also plays a big role in thyroid function and your immune system. The immune system needs this mineral in order to operate properly.

Selenium in Food:

Selenium is found in all of these different foods:

  1. Brazil Nuts
  2. Sunflower Seeds
  3. Fish (tuna, halibut, sardines, flounder, salmon)
  4. Shellfish (oysters, mussels, shrimp, clams, scallops)
  5. Meat (Beef, liver, lamb, pork)
  6. Poultry (chicken, turkey)
  7. Eggs
  8. Mushrooms (button, crimini, shiitake)
  9. Grains (wheat germ, barley, brown rice, oats)
  10. Onions


Too much or Too little:

Too much Selenium

Selenium in high doses can indeed be toxic. Although Selenium toxicity is rare in the United States, with this being true, high levels of Selenium and high blood levels can result in a condition called Selenosis.

Selenosis symptoms-

  • brittle hair
  • brittle nails
  • hair loss
  • gastrointestinal upset
  • skin rash
  • fatigue
  • irritability
  • mild nerve damage
  • garlic-breath odor

Too little Selenium

Selenium deficiency is not thought to cause any short term illnesses. Although this is true, it predisposes children and adolescents to Keshan disease and Kashin-Beck disease. These specific conditions affect the heart, bones, and joints.

Keshan Disease-

  • This disease is a potentially fatal form of cardiomyopathy, which is a disease of the heart muscle. This disease is found in areas where the selenium level in the soil is low.
  • It was first found in the Keshan province of China.
  • The only treatment would be a Selenium supplement.

Kashin-Beck Disease-

  • This is known as 'Big Bone Disease'.
  • It is a disease that works at disabling the bones and joints.
  • This leads to stunted grown and deformity of the joints.

Big image

Recommended Daily Allowances (RDA)


· Children 1 - 3 years: 20 mcg

· Children 4 - 8 years: 30 mcg

· Children 9 - 13: 40 mcg

· Children 14 - 18: 55 mcg


· 19 and older: 55 mcg

· Pregnant women: 60 mcg

· Breastfeeding women: 70 mcg


You can get a Selenium supplement at your local Walgreens. You can get the Nature's Way Selenium 200 mcg Dietary Supplement Capsules at Walgreens for only $7.99. With 100 capsules in the bottle this gives you $.08 for the average daily cost.
Big image