LyrArc Article Gist
This essay from the Yale-Griffin Prevention Research Center which puts focus on preventive medicine looks at the food we eat in a different way. In order to have a real conversation on food it says ignore the latest fads on nutrition on keto, paleo or other diets, and think about how our ancestors ate in a healthy way that both prevented disease and provided the right nutrition.

It was mostly plants as meat was not freely and easily available. So much so that the consumption of meat and animal protein may have gone up by as much as 90% today. Processed foods did not exist, and unprocessed plant foods were there in abundance. They were not called low fat low carb or vegan then. It is during the beginning of the 19th and in the 20th century that the production and marketing of shelf stable, nutrient poor, high calorie, high sugar and salt processed foods replaced the normal way our ancestors had their food leading to the public health crisis of today, both in health quality, outcomes and cost. 

It says replace meat and where appropriate dairy healthier plant based beans, lentils, whole grains, and vegetables, fruits so that animal protein gets back to the levels of the centuries before the 20th century shift to processed foods. It says use common sense beans including soyabeans and lentil beans replace meat wherever possible and oats with berries and nuts replace eggs. Vegetable and garbanzo beans salad replaces cheese and yogurt reducing the cheese or yogurt to very moderate levels. Focus on wholesome food and eat like our ancestors did and exercize then everything else will fall into place.