Balercia et al. examined the effects of coenzyme Q10 (CoQ10) on 22 men, age 25 to 39, with idiopathic asthenozoospermia (reduction in sperm motility). In the six-month study, the subjects consumed 200 mg of CoQ10 twice daily. After treatment, CoQ10 levels significantly increased in seminal plasma. In addition, CoQ10 levels in sperm cells significantly increased. Furthermore, phosphatidylcholine levels rose significantly in both seminal plasma and sperm cells. Sperm forward motility also increased after CoQ10 treatment, from 9% at baseline to 16% after treatment. Other improvements in the male’s sperm also were noted after treatment. Six months after the CoQ10 treatment stopped, sperm forward motility was significantly reduced from 16% back to 9.5%. The authors conclude that CoQ10 may be beneficial in the treatment of asthenozoospermia. (31)
