Male fertility: a possible role of vitamins.

This review concerns recent experimental information on some aspects revealing biochemical nature of the origin of defects responsible for the spermatozoa's loss of fertilizing potential. Possible protective effect of vitamins-antioxidants against peroxidative damage of spermatozoa playing a key role in the etiology of defective sperm function, regulating role of vitamins K and D in MM-isozyme creatine kinase activity serving as a measure of sperm biochemical maturity and normal sperm development and influence of body insufficiency of B group vitamins on energy metabolism disturbances in motile, actively metabolizing spermatozoa have been discussed.