Shares in beer, wine and spirits companies such as Anheuser-Busch InBev, Boston Beer and Constellation Brands fell after the U.S. Surgeon General said alcoholic beverages should carry cancer warnings.

U.S. Surgeon General Dr. Vivek Murthy issued a Surgeon General's Advisory on Friday, warning of the connection between alcohol use and cancer risk. "This advisory highlights alcohol use as a leading preventable cause of cancer in the United States,

The U.S. surgeon general called out the link between alcohol and cancer. Is there any amount that's safe to drink? Here's what experts say.

In a new advisory, Surgeon General Vivek Murthy recommended that labels on alcoholic beverages be updated to include a warning about cancer risk.

"The fact that alcohol is associated with cancer is nothing new. Alcohol is an established carcinogen," Dr. Kathleen Egan at Moffitt Cancer Center said. She says alcohol has been