Vitamin C and E supplements hampers endurance training

An 11-week trial involving 54 young, healthy men and women engaging in an endurance training program, has found that markers for the production of new muscle mitochondria only increased in the group not taking vitamin C and E supplements. It’s possible that high doses of vitamins C and E act as antioxidants and take away some of the oxidative stress needed to develop muscular endurance.

http://www.eurekalert.org/pub_releases/2014-02/w-vca013014.php

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