The study, published in the journal PLOS ONE, found that men who consumed 85 to 170 mg of caffeine a day had a risk of erectile dysfunction (ED) 42% lower than average. For those who consumed 171 to 303 mg, the risk reduction was 39%.
The researchers asked 3,700 male subjects to complete a questionnaire about the amount of caffeine they had consumed in the last 24 hours. While caffeine decreased the likelihood of erectile dysfunction in obese, overweight or hypertensive patients, the same was not true for diabetics.
“Caffeine does not compensate for the negative effects of diabetes on erectile dysfunction,” says David Lopez, the lead author of the study. “This is not surprising, as diabetes is one of the biggest risk factors for this dysfunction. “
There are an estimated 30 million Americans who suffer from erectile dysfunction, that is, an inability to stay long enough. In general, the likelihood of dysfunction increases with age. Some 40% of the 40-year-olds are affected, and 70% of the 70-year-olds, as the Huffington Post recently recalled.
Infographic by Alissa Scheller for The Huffington Post.
“Do not forget that besides caffeine, energy drinks and sodas contain other ingredients we do not know much about,” he adds. “We are very familiar with sugar, which is clearly associated with diabetes and obesity. Other drinks are free, but some of their ingredients may cause cancer. “
Since this is an association study, David Lopez indicates that he can not, for the moment, make any recommendations related to caffeine consumption.