Here's why:

* Carbohydrates are broken down into glucose, which is the primary fuel source for our cells. Our bodies use glucose to create energy through a process called cellular respiration.

* Carbohydrates provide the most readily available source of energy. They are quickly digested and absorbed, providing a fast energy boost.

* Other sources of energy, like fats and proteins, are also important but are not as readily available as carbohydrates. Fats provide a more long-lasting source of energy, and proteins are primarily used for building and repairing tissues.

While carbohydrates are the primary source of energy, it's important to have a balanced diet that includes all three macronutrients (carbohydrates, fats, and proteins) to meet your body's needs.