"Adam Drewnowski" is a professor of epidemiology at the University of Washington and the director of the Center for Public Health Nutrition at the University's University of Washington School of Public Health/School of Public Health. He is best known for his research into obesity. For instance, he is the leader of the Seattle Obesity Study, which, according to the University of Washington's website, "examines social determinants of health, focusing on the mechanisms behind the observed social gradient in diet quality and body weight." He has also developed the Nutrient Rich Foods Index, which ranks foods based on their nutrient density, and has studied the relationship between poverty and being more likely to become obese, since unhealthy food is cheaper than healthy food.

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There is a difference: The first group is rich.

The science is being stretched.