the nutritionists who help set the agenda on public health have begun referring to the calorie loads in processed food—what they call energy density—as the aspect we should be most wary of. This is the three-meat, four-cheese frozen pizza with a soda on the side; the Oreo Mega Stuf cookies; the extra-large bag of French fries. Our stomach as it evolved to love calories really loves these and tells the brain so. At the same time, these products don’t have much in the way of the things that will physically stretch the stomach and prompt it to signal the brain to put on the brake: fiber and
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