The antioxidants are vitamin A,C,E and selenium.They are valuable for diminished morbility in general,lowered incidence of cancer and cotributing to increased life expectancy.
They have synergistic effect.When dietary supply may be deficient,supplemention by suitable preparation can be given.
Beta-carotene-Vitamin A:are needed to maintain stability of biological membranes(protect the cells against oxidats).
Vitamin E:many tocopherols have vitamin E value and the alpha is particularly important.Vitamin E contributes to maintaining stability of the protective biological membranes.Vitamin E also protects polyunsaturated fatty acids against oxidation.
Vitamin C:ascorbic acid is a powerful reducing agent,prevents atherosclerosis and cancer.
Selenium:cofactor of the enzyme glutathione peroxidase that protects membranes from the oxidative damage of oxidants.the enzyme destroys peroxides derived from unsaturated fatty acids.deficiency may affect the liver and skeletal muscles.
Adequate Diet:
Must be considered:
-energy:just needed calories
-low fat,specially that saturated,or restricted fat
-low cholesterol cotent of diet
-adequate complex content of diet
-adequate fiber content,no excess
-limited salt intake,no excess
-limited sugar
-sufficient vegetable,fruits and whole grain cereals.
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