<human>:  What is the difference between carbohydrates and proteins?
<bot>: The primary difference between carbohydrates and proteins is that carbohydrates provide energy in the form of sugars, while proteins provide energy in the form of amino acids. Carbohydrates are mainly composed of oxygen, hydrogen, and carbon, while proteins are composed of complex molecules including carbon, hydrogen, nitrogen, and oxygen. Carbohydrates are found in foods like bread, rice, and fruit, while proteins are found in meats, nuts, and dairy products.