Would you be confident foraging for food in our "natural" environment? A great deal of plants, fungi, nuts, and fruits are highly toxic. Even staples like rice

Would you be confident foraging for food in our "natural" environment? A great deal of plants, fungi, nuts, and fruits are highly toxic. Even staples like rice and fish have high levels of naturally occurring arsenic and lead; and most table spices are lethal in high quantities. On top of that, there are countless carcinogens, allergens, pathogenic bacteria and parasites in the food chain. There is a reason lifespan has been increasing.