¿Qué son las calorías?

The video explains what calories are, their role in providing energy for body functions, and how they are measured. It discusses the concept of empty calories, which are high in energy but low in nutritional value, and provides examples like soft drinks and sweets. The process of energy release from food through chemical reactions is described, along with a method to calculate the energy content in food. Finally, the video emphasizes the importance of balancing calorific and nutritional values in a healthy diet.

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