What’s really in the disturbingly green McDonald’s Shamrock Shake?

Today the Shamrock Shake has four main ingredients: vanilla soft serve ice cream McDonald’s uses in all shakes, Shamrock Shake Syrup (which contains dyes and artificial flavoring), whipped cream and a maraschino cherry. It may be delicious but it probably shouldn’t be consumed every day. A medium is 660 calories—which is more than a Big Mac.

Happy St. Patrick’s Day!