Why do we need to eat

A food is something that provides nutrients. Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy. (So we don’t die:))

So we won’t be tired,have energy,and be healthy

Because the carnivores keep the herbivore population in check