Vitamin E supplementation may reduce the risk for cancer but only in individuals harboring a particular allele of the catechol-O-methyltransferase (COMT) gene, suggests an analysis of two randomized trials.
Vitamin E supplementation may reduce the risk for cancer but only in individuals harboring a particular allele of the catechol-O-methyltransferase (COMT) gene, suggests an analysis of two randomized trials.