The effects of alcohol use on sperm
quality are unclear. Some studies have
shown that moderate drinking may be
protective against DNA damage, perhaps
in part due to the antioxidant effect
of some alcoholic beverages.16 Other
studies have shown that alcohol may be
damaging to sperm DNA. The data are
clearer on heavy drinking ( 2 drinks a
day). In a study of alcoholics in an addiction
treatment center, testosterone level,
semen volume, sperm count, and the