Question

What are the health concerns surrounding antioxidant vitamins?

Is it always necessary to have 100% of the RDA for every mineral? Why?

Answer 1

Answer : Antioxidants are substance that may protect your cells against free radicals which may play a role in heart disease ,cancer and other diseases. At the same time High -dose supplements of antioxidants may be linked to health risks in some cases. Supplementing with high -doses of beta -carotene may increase the risk of lung cancer in smokers .supplementing with high -dose of vitamin E may increase risks of prostate cancer and one type of stroke. At high concentrations ,antioxidants may act as pro-oxidants ,increasing oxidation and protect dangerous cells (cancer cells ) as well as healthy cells . Recommended Dietary Allowances (RDA) are the level of the intake of essential nutrients that ,on the basis of scientific knowledge ,are judged by the Food and Nutrition Board to be adequate to meet the known nutrient needs of practically all healthy person's . Supplement manufacturers should not be offering 100% RDA in vitamins and minerals supplements .At the same time ,children require 100% RDA to build a strong immunity. At the same time ,high doses cause health risks complications.