Carbohydrates play a vital role in a balanced diet as they serve as the body's primary source of energy. They are broken down into glucose, which fuels physical activity and brain function. Including a variety of carbohydrates, particularly from whole grains, fruits, and vegetables, provides essential nutrients and dietary fiber that aid in digestion and support overall health. However, not all carbohydrates are created equal; focusing on complex carbohydrates over simple sugars is important for steady energy and preventing spikes in blood sugar levels.