The process calories take during the day

Does the body process all calories the same way? For example: 100 Cal pack vs. 120 Cal from a banana?

It was widely believed till now that all calories are processed and metabolized in the same manner in our body. But scientific research shows otherwise; our body reacts very differently to calories depending on its source and the way in which it is consumed. Calories from different sources like proteins, fat and carbohydrates are similar in their energy content but the body processes each of these in a different way. This is because the body has to spend different amounts of energy to process and metabolize the various nutrients and calories; more energy is spent to process proteins than carbohydrates and more energy to process carbohydrates than fat. Hence, 120 calories from a banana add fewer calories to your body than a 100 Cal pack.

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