>Survival instinct is to eat everything in front of you. Reduce portion sizes across the board, and people would likely eat less. This is too simplistic and is

>Survival instinct is to eat everything in front of you. Reduce portion sizes across the board, and people would likely eat less. This is too simplistic and is not true for many people. There are also many people out there who, when faced with smaller portions, will order multiple servings or snack constantly between meals because they are always feeling the urge to eat (while typically having low energy with which to exercise). Added sugar in so many processed foods should not be ignored, as per the findings of this study. Lower energy expenditure via ATP, blocking of ability to use stored fat for ATP, and leptin resistance blocking the satiety signal play a huge role in obesity. These all appear to be directly triggered by fructose (which is present in most sugars, not just HFCS).