Here's why:

* Potential energy is stored energy. It's the energy an object possesses due to its position or state. In the case of food, the chemical bonds within the molecules of carbohydrates, fats, and proteins store potential energy.

* Kinetic energy is the energy of motion.

When you eat food, your body breaks down the chemical bonds in the food molecules, releasing the stored potential energy. This energy is then used to power various bodily functions, like movement, growth, and maintaining body temperature.

So, the food itself is potential energy, but when your body breaks it down, it converts that potential energy into kinetic energy.