Both promote a plant-rich whole foods diet; a diet low in starch and sugar, processed food, additives, hormones, antibiotics, GMOs; and, except for a small group of extreme low-fat vegan fans, a diet rich in good fats. They both even eschew dairy. And all the other dietary approaches—vegetarian, keto, time-restricted eating, lectin-free diets, Mediterranean, low-carb, low-fat, gluten-free, and more—mostly adhere to a whole foods approach and remove harmful ultra-processed foods and include protective foods.
Perhaps the real focus should be on shifting people from an obesogenic, disease-causing, nutrient-depleted diet to one rich in whole foods and protective foods that promote weight loss, health, and well-being. That, my friends, is the goal of the Pegan Diet.