... Drewnowski and Bellisle (2007) believe that the connection between obesity and sugar consumption, liquid or otherwise, may actually depend on many other factors, including “purpose, context, and mode ... people.” e prob-lems that they raise and the analyses that they conduct go far to realize this goal. Early in the book, I was struck by the discussion of two problems in the un-derstanding of obesity. ... people) to 50% (among active ones). Physical activity is thus the major factor on the energy output side of the energy balance equation, and it is important to consider. Less than 50% of the American...