The biggest problem is that most food is grown poorly in general and then over processed. The next biggest problem is that people are not eating locally or seasonally. I like to eat everything that is edible growing on my homestead. That includes foraged plants, nuts, berries and wild game as well as cultivated plants/animals. While I try to preserve what yields I can get from the homestead, most of the time my diet it dictated by what's growing in abundance throughout the seasons.
Having a diverse diet means access to a diversity of food and food preparation/preservation. Which is more resilient too. The perfect diet, in my situation is to eat what I can grow and what is growing in my back yard.
