How much alcohol causes erectile dysfunction?

Heavy or long-term alcohol use increases the risk of erectile dysfunction (ED). Some observational research suggests a J-shaped association, where light to moderate intake is linked with a lower rate of ED compared with non-drinkers, but risk rises with very heavy drinking and alcohol dependence. Acute heavy drinking can also cause temporary erection difficulties.

Key points:

Light to moderate alcohol intake is associated with a lower risk of ED in some observational studies, although this does not prove a protective effect.
Very heavy drinking and alcohol dependence are associated with a higher risk of ED and other sexual dysfunction.
Chronic excessive alcohol intake can contribute to ED via vascular, hormonal, neurological, and psychological mechanisms, and through alcohol-related organ damage.
Acute heavy drinking (commonly binge drinking) can trigger temporary erectile problems, which are often reversible once alcohol has worn off.

This text has been fact-checked for accuracy by Sorin Romaniuc, Pharmacist at medino.