Final answer:
A snack high in protein will have the highest satiety value compared to snacks with similar calories that are high in simple carbohydrates, saturated fats, or sugar.
Step-by-step explanation:
The snack with the highest satiety value, assuming the calories and relative portion/size weight are similar, would be a snack high in protein. Protein tends to have a higher satiety level than snacks high in simple carbohydrates, sugar, or even saturated fat. This is because protein generally takes longer to digest and it can stimulate the release of satiety hormones more effectively. Consequently, it provides a more prolonged feeling of fullness, helping to control hunger and potentially reducing overall calorie intake. On the other hand, sugary snacks or those high in simple carbohydrates lead to rapid spikes and declines in blood sugar, leading to feelings of hunger sooner. While fatty foods have a high energy density, providing more calories per gram, they do not always result in high satiety, particularly when compared to protein-rich foods.