A Study Using Milkshakes Teaches Us A Lot About Appetite

Our mind may be playing tricks on us when it comes to healthy eating.


Regardless of whose milkshake is better than whose, when it comes to satisfying your sweet tooth, what you think you are consuming plays a big part.

A study conducted by Yale University served up the same 380-calorie shake to two groups: One was told they were drinking a 140-calorie “sensible” shake, and the other thought they were sipping a 620-calorie “indulgent” dessert. The first group saw a fairly flat ghrelin response (a hormone that increases appetite), while the latter experienced a steep decline.

So should you tell yourself that kale smoothie is actually an ice cream soda? Maybe not—but keep in mind, when you’re trying to eat healthy, expectations matter.