At what age do men produce the most fertile and healthy sperms?

Between 14-45, statistically speaking.

15...........................

Late teens. It's all downhill from there.

Men are the most fertile when they are in their late teens and throughout their 20's.

sounds like you know a quack......the less processed foods you take in, the healthier you'll remain.....same goes for the female, who should take vitamins and minerals, no drugs, no alcohol, same for the man......