For example, we evolved in a symbiotic relationship with our diet, which comprised 800 species of wild plants. These are nearly absent in our modern diet, which is comprised of primarily four crops (corn, wheat, soy, and rice), things never consumed by our hunter-gatherer ancestors. Our ancestors’ diet was phytochemically rich and contained ten times as much fiber and dramatically higher levels of vitamins, minerals, omega‑3 fats, and phytochemicals.1
