Gallup, which started tracking Americans' alcohol habits more than 80 years ago, says the drop in drinking rates coincides with Americans' growing concerns that even moderate drinking is unhealthy.

Gallup poll finds more Americans are cutting their alcohol intake to zero. Health concerns are a major reason.

Only 54 percent of American adults say they consume alcohol, according to Gallup, the lowest in the survey’s 90-year history by 1 percentage point.