Calorie Balance Model

For modest weight loss goals, eating more unprocessed and healthy foods may naturally produce weight loss. The article presents calorie-only weight-loss advice as incomplete because biology includes hormonal regulation. 100 calories of meat and 100 calories of soda are not metabolically equivalent because they produce entirely different insulin responses and outcomes. The article says Michaels used the calories-in/calories-out principle to argue that weight loss requires calorie restriction. Carbohydrate calories matter most among macronutrients because of their strong insulin response. The article argues that diets tolerated by naturally lean people are not automatically suitable for people who fatten easily. Thermodynamic calorie accounting is treated as accurate but insufficient for living organisms responding to food. Calorie counting is described as physically incomplete because it ignores hormonal effects on storage, satiety, and metabolic adaptation. The article treats CICO as thermodynamically true but insufficient for explaining hormonal fat mobilization. The article rejects the caloric-balance model because it excludes physiological, hormonal, and fuel-partitioning diffe…