Buzz
Unless you’re one of the few who isn’t a fan of sweets, the temptation of a glazed or powdered doughnut is often irresistible. The next time you give in to that second or third Boston cream, don’t blame it on a lack of self-control—blame it on your brain.
According to New Scientist, a study from Yale University published in the journal Cell Metabolism reveals new findings showing that foods rich in both fats and carbohydrates stimulate the brain’s reward center more than most foods. For this research, participants were shown images of carbohydrate-heavy foods (like candy), fatty foods (like cheese), and foods containing both (like doughnuts). They were then asked to place monetary bids on their most desired food while their brain activity was measured.
Not only were participants willing to spend more money on doughnuts and similar treats, but foods rich in carbs and fats also triggered significantly more activity in the striatum, the part of the brain responsible for dopamine release. (Chocolate is among the foods most commonly linked to dopamine spikes, acting similarly to substances like cocaine and amphetamines.)
After reviewing these findings, researcher Dana Small proposed that the brain may use separate systems to evaluate fats and carbohydrates. Junk foods that stimulate both systems simultaneously might lead to a stronger dopamine release.
However, this study doesn’t fully explain why different individuals crave different foods. A significant part of it lies in our routines and the specific foods we turn to when seeking comfort or happiness. Another 2015 study revealed that certain foods linked to high levels of brain reward—such as pizza, chocolate, chips, and cookies—are among the most addictive foods (though doughnuts didn’t make the top 20).
It's still possible to resist unhealthy foods. While many people aim to improve their self-control, one of the most effective strategies to avoid temptation is to eliminate it entirely. Free doughnuts in the break room? Keep your distance.
