Channel3000.com March 17, 2021 4:00 AM By Lisa Drayer, CNN Posted: Updated: Courtesy Guinness Guinness, like other Irish stouts, enjoys a seasonal popularity every St. Patrick's Day. It has also been touted as being "good for you," at least by its own advertising posters decades ago. AP Photo/Julio Cortez Barrels are seen lined up at the Guinness Open Gate Brewery, Saturday, March 13, 2021, in Halethorpe, Md. AP Photo/Julio Cortez A general view of a building at the Guinness Open Gate Brewery, Saturday, March 13, 2021, in Halethorpe, Md. Aluminum cans are seen at the Guinness Open Gate Brewery, Saturday, March 13, 2021, in Halethorpe, Md.