Information in this section pertains to all global PEN® partners except where country flags are
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Disease Etiology
Overweight and obesity may be viewed as the development of excess body fat related to an energy imbalance between 'energy in' (calories consumed from food and beverages) and 'energy out' (calories burned on basic body functions and physical activity) (1). However, there are many factors that influence these two components of energy balance. Understanding these factors can help health care professionals appropriately assess, identify and address the etiological