It’s a simplification, but it’s not an oversimplification. Even less processed foods are going to vary in terms of satiety and calorie density.True, but if you read the article you'd see where it also indicated that people:
So while calories-in/calories-out is true, it's also an oversimplification.
- Tended to consume more calories per minute when eating ultra-processed food,
- Were less sated after eating ultra-processed food, and
- Absorbed more calories from a given volume of food.