As you can see by the Gallup Poll data in the link below, the average number of Americans eating a vegetarian or vegan diet remained virtually unchanged between 2012 to 2018. This is a stunning number given the seemingly heighten interest in such diets. Especially so,since they have the most promise to make agriculture carbon neutral. If we could all adapt to these diets the impact would be enormous. But, as witnessed by this data, sadly that’s not happening and isn’t likely to anytime soon.