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.

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.

After years of being told that red wine was good for heart health, more Americans appear to be heeding warnings that even moderate alcohol consumption can be unhealthy.