Dr. McDougall connects the common denominator in the most pressing issues we face today – chronic disease (type 2 diabetes, heart disease and obesity, etc), COVID and climate change to the food we consume. Food poisoning caused by eating animal products results in chronic diseases which cause comorbidities making COVID infections more serious while animal agriculture used to produce animal foods is the largest contributor to global warming. Changing to a plant-based diet is the simplest way to combat all of these critical issues.