May help reduce hunger

Satiety is a phrase used to describe the sensation of being full after eating a meal. It is the antithesis of appetite and hunger, and it should inhibit food cravings and the desire to eat. Some foods are more satiating than others, which is influenced by their macronutrient (protein, carbohydrate, and fat) makeup.

By far the most filling of the three macronutrients is protein. However, not all proteins have the same satiety effect. Whey protein appears to be more satiating than other protein sources such as casein and soy. These characteristics make it especially beneficial for folks who need to eat fewer calories and lose weight.