Despite many study results suggesting that antioxidants have a positive effect on abnormal sperm parameters associated with male infertility, a large US clinical trial of 174 couples has found that an antioxidant formulation taken daily by the male partner for a minimum of three months made no difference to sperm concentration, motility or morphology, nor to the rate of DNA fragmentation.
Antioxidant supplements fail to improve sperm quality in infertile men
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