Faced with the pandemic nutrition-related illnesses in our society, we need to rethink the problems and find new ways of preventing them. A purely medical approach directed at the life-style of individual persons (and especially those affected) and based on “taking responsibility for one's self” is not an adequate way of dealing with a problem affecting the entire population. Nutrition-related problems are a challenge to public health. Public health nutrition (PHN) is application- and solution-oriented; its objective is to promote good health by primary prevention of nutrition-related illnesses. PHN strategies and approaches to solving the problems are found outside our medical healthcare system as well as within it, and address politics and our environment. PHN is based on nutritional and sociological sciences and needs experts, championship, and acceptance, e.g., in education, science, politics, and practice.