Cola and Sperm Production
It’s been well-studied how sperm count has been declining steadily throughout the years, and researchers from Denmark are showing us how important eating habits are, specifically the consumption of cola beverages.
In their research, they found that the higher the cola consumption, the lower the sperm concentration and the lower the sperm count. Compared to the non-cola-drinkers, those who consumed 7 or more liters of cola per week showed a 40-50% decrease in the sperm concentration and sperm count.
Link:
https://academic.oup.com/aje/article/171/8/883/82236
Reference:
American Journal of Epidemiology, Volume 171, Issue 8, 15 April 2010, Pages 883–891