Eat more and weigh less: The secret power of wholefoods

Forget tiny portions and constant hunger; new research suggests you can lose weight by eating more food, provided it comes from nature rather than a factory.

A study from the University of Bristol reveals that people eating unprocessed wholefoods consumed 50 per cent more food by volume yet took in 330 fewer calories daily compared to those on ultra-processed diets.

This phenomenon is driven by what scientists call "nutritional intelligence." It appears our bodies instinctively try to balance energy intake with essential vitamins and minerals.

Psychologist Jeff Brunstrom explains: "Our dietary choices aren't random – in fact we seem to make much smarter decisions than previously assumed, when foods are presented in their natural state."

When faced with wholefoods, we intuitively reach for micronutrient-rich fruits and vegetables to satisfy our internal requirements.

Ultra-processed foods (UPFs) disrupt this natural compass. Because they are energy-dense and often artificially fortified, they confuse our satiety signals.

Annika Flynn, a researcher on the project, warns that UPFs may "effectively kill the beneficial trade-off between calories and micronutrients." Essentially, we overeat because the "healthy competition" between nutrients is gone.

Study author Mark Schatzker notes that if participants had only eaten high-calorie options, they would have developed severe deficiencies.

"Those micronutrient gaps were filled by lower-calorie fruits and vegetables," he says. This study suggests that weight loss isn't just about willpower or portion control; it’s about returning to a diet that allows our biological wisdom to function properly.