WASHINGTON — Alcohol is a leading cause of cancer, a risk that should be clearly labeled on drinks Americans consume, U.S.

The top U.S. health official is calling for all alcoholic beverages to carry a warning label about cancer risk.

U.S. Surgeon General Vivek Murthy’s office warns alcohol consumption is to blame for nearly one million preventable cancer cases in the U.S. over the last decade.

A flurry of news reports and studies that point to the health hazards of alcohol are a cause for concern for beverage producers already dealing with a challenging market.