How to Make a Shake That Will Actually Keep You Full For Hours

Making your shake thicker can trick your brain into keeping you full for longer, new Dutch research suggests.

Researchers had 15 men try two different shakes, both on an empty stomach on different days. One shake was 100 calories and thick like pudding while another was 500 calories but thin like milk.

The researchers then measured the amount of food in the subjects’ stomachs with an MRI and surveyed them on how hungry they felt for the next hour and a half.

Even though the 500-calorie shake stayed in the subjects’ stomachs for longer, the 100-calorie shake kept them feeling as full or more full than the higher-calorie one.