The Claim
When macronutrient composition is held constant, consumption of ultra-processed diets results in an average increase of approximately 500 calories per day compared to whole-food diets.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When people eat diets with the same amounts of protein, fat, and carbohydrates, those eating ultra-processed foods consume about 500 more calories per day than those eating whole foods.
See the scientific wording
When macronutrient composition is matched, ultra-processed diets result in approximately 500 additional daily calories consumed compared to whole-food diets.
Ultra-processed foods are softer and easier to chew, so people eat them faster. This fast eating doesn't give the stomach and brain enough time to signal fullness, so people keep eating even after they've had enough calories. At the same time, the body doesn't reduce hunger signals as much after eating these foods, so the urge to eat more stays stronger for longer.
What the research says
2 studiesWhen people ate the same food but made with ultra-processed ingredients, they ate it faster and felt like they could eat more afterward — even though the food had the same protein, fat, and carbs. This suggests ultra-processed foods might make you eat more without realizing it.
When people ate ultra-processed foods, they ate about 500 more calories a day than when they ate whole foods—even though both diets had the same protein, fat, and carbs. They didn’t feel hungrier, but they just ate more.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.