diet

Thinking about how to built the body , i have to think about what food i really need. Today , we can get any kinds of food , anywhere , anytime ,without growing crops. It makes us eat easier and get fat . How about ancient times ? What does the body need originally? Vegetable protein? How about animal protein ,sugar ,grain?   I try to listen what my body want . But i hear nothing . Hardly to hear what my soul says either.