Trace Mineral- Zinc Flashcards

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1
Q

Sources

A

-Meat/ meat products
-Bread
-Eggs
-Milk/ milk products

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2
Q

Functions

A

-Prevents STUNTED GROWTH and delayed SEXUAL MATURITY so essential for NORMAL GROWTH AND DEVELOPMEN-Involved in METABOLISM of all MACRONUTRIENTS and in the PRODUCTION OF ENERGY
-Possesses ANTIOXIDANT properties
-Needed for an EFFECTIVE IMMUNE SYSTEM (antioxidant properties)

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3
Q

Deficiency

A

-Rare
-Mild- REDUCED WOULD HEALING
Severe- GROWTH RETARDATION, delayed SEXUAL AND SKELETAL DEVELOPMENT, DERMATITIS (white scaly skin), LOSS OF APPETITE, DAIRRHOEA

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4
Q

Excess

A

-Interferes with COPPER METABOLISM

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5
Q

Bioavailability

A

-Only 1/3 absorbed
-Absorption reduced by PHYTIC ACID (present in whole meal cereals) and by presence of calcium and other phytates
-Iron tablets interfere with zinc absorption

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