From this Men’s Health article A 2,010-Calorie Shake?!?! (and Other Shocking Drinks to Avoid) the worst drinks are:
1. WORST FLOAT Baskin-Robbins Large Ice Cream Soda with Vanilla Ice Cream Float (32 ounces)960 calories 
2. WORST ICE BLENDED COFFEE DRINK Così Gigante Double OH! Arctic (23 ounces) 1,210 calories
3. WORST SMOOTHIE Smoothie King’s The Hulk, Strawberry (40 ounces) 2,088 calories
4. THE WORST DRINK IN AMERICA Cold Stone Creamery Gotta Have It PB&C Shake 2,010 calories
That is a lot of calories. Liquids are absorbed faster by the body. It is not a good combination for those trying to lose weight.
