Research has shown that moderate caffeine consumption has no negative influence on sperm count or quality, but reasonable consumption is 300 milligrams, or only about two cups of coffee, says Caitlin Dunne, a fertility doctor at the Pacific Centre for Reproductive Medicine in Vancouver.

Should men reduce caffeine when trying to conceive?

But a new study suggests the men in their lives need to limit caffeine too. Pregnant women who had more than two caffeinated drinks a day while trying to conceive had a 74 percent higher risk of miscarriage than their peers who drank less coffee, tea, soda and energy drinks, the study found.

Does caffeine increase sperm motility?

No association between caffeine and sperm motility or morphology. Men with a high caffeine intake had about 14% higher concentration of testosterone than men with a low caffeine intake.