Nature on real food and obesity:
"As long as the animal eats the foods that it evolved to consume, this balance is maintained. The trouble comes when it eats a diet with a disproportionate quantity of a particular macronutrient, either because of a lack of appropriate foods in the environment or because its appetite control systems have been fooled or subverted."
Nothing new here, but good to see 'common sense' go mainstream.
The problem with highly processed food is that its familiarity makes it appear harmless.