<human>:  Why do we eat?
<bot>: We eat because we need to. Food is a source of energy. The food we eat contains energy that our bodies need to survive. Food can be found in many forms, such as plants, animals, and fungi. Plants are the primary producers of food, and they convert sunlight into chemical energy through photosynthesis. Animals and fungi are secondary producers, meaning they use the energy from plants to make their own food.