They're hard to resist. Every year, McDonald's adds the Shamrock Shake to its menu to entice mint lovers in search of something sweet. The rich vanilla shakes are swirled with the green goodness ...

New Shamrock Mocha: "A mocha (chocolate syrup, espresso, and steamed milk) with Shamrock Shake syrup." Now, these drinks are only available at participating McDonald's.

According to McDonald's website, a small Shamrock Shake is 460 calories with 63 grams of sugar. A medium equals 560 calories with 78 grams of sugar and a large packs 800 calories with 113 grams of ...

According to McDonald's website, a small Shamrock Shake is 460 calories with 63 grams of sugar. A medium equals 560 calories with 78 grams of sugar and a large packs 800 calories with 113 grams of ...