<prompt> Which of the following trace element has Vitamin E sparing effect -CopperIronMagnesiumSelenium  <response>: Ans. is d i.e., Selenium o Selenium prevents lipid peroxidation and offers protection against free radicals,o Vitamin E also has the same effect antioxidant though by a different mechanism,o Thus selenium and vitamin E supplement each other.o Availability of vitamin E reduces the selenium requirment and conversely, in selenium-deficient tissue, vitamin E is depleted. 