Humans and the Earth

I was thinking the other day about how God made humans from the dust of the earth. We return to dust when we die. Food that God gave us such as plants, vegetables and fruits come from the ground, the earth. I was thinking, could it be that because we come from the earth, our body recognizes and accepts food that come from the earth as well? I began a vegetarian diet 6 weeks ago and I was wondering if this is the diet that God intended for us all along. There are so many debates regarding meat, was it intended to be part of humans diet? My vegan journey is going well so far, I feel more energized and losing the excess weight slowly.