Three diets come to the mind. Mediterranean, Atlantic, Mormon diet as it is designed and followed in America. Followers of these diets tend to live healthy and long. What the three diets have in common is, each of them is local and seasonal to a large extent.

Local and seasonal. Eases the transportation load and refrigeration load. Both contribute to what you refer to as good for the planet .

Perhaps letting every region design and foster its own local and seasonal diet is a good idea.

That brings us to the food industry. How may we escape the sales and marketing armies of the food industry? A great challenge indeed.