Based on our current knowledge, some people thrive in plant-based diets, and some do in animal-based diets. It is entirely a personal matter and choice. In my opinion, diet is not a political and ethical matter. It is a health and well-being requirement for a satisfying life. Blue-zone studies investigating the lives of centenarians indicate that both plant-based and animal-based diets enable some people to live over a century. Leveraging this knowledge, I firmly believe that we need a customized diet matching our profile, environment, and goals.