Trace Mineral- Selenium Flashcards

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1
Q

Sources of Selenium

A

-Liver
-Butter
-Crab
-Barley
-Oats
-brown rice

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2
Q

Functions

A

-ANTIOXIDANT- protects against cancer, esp. breast and colon
-works with VITAMIN E- ENHANCE IMMUNITY
-Helps improve SKIN CONDITIONS- benefits Cardiovascular System by DECREASING THE RISK OF STROKES AND HEART ATTACKS
-key role in THYROID HORMONE METABOLISM AND SUPPORTS NORMAL THYROID FUNCTION

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3
Q

Deficiency

A

-Rare- Selenium found in a wide variety of foods eaten on a regular basis

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4
Q

Excess

A

-Thought ot interfere with SULPHUR compounds, and even replace Sulphur in body- very similar biochemically- may decrease a number of ENZYME ACTIONS
-Long term ingestion- CAUSE PROBLEMS WITH TOOTH ENAMEL AND STRENGTH
-High levels increase tooth decay

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5
Q

Bioavailability

A

-Stable during storage
-Animal foods- lose a little during processing- canning seafood- 10% loss
-Processing wholegrains- large loss- 60% loss

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