Eating a balanced diet seems to keep the sperm factory humming along. And two recent studies suggest that a nutritional supplement known as coenzyme Q can boost sperm production, says Dr. Niederberger.
In one of the studies, coenzyme Q improved sperm cells' wiggling. In the other, it boosted sperm counts and improved their motility (movement). The studies were small - but promising, says Dr. Niederberger.