The Link Between Ultra-Processed Foods and Binge Eating
Ultra-processed foods, such as cookies, candies, fries and smoked meats, have long been associated with various health risks, including heart disease, brain disorders and weakened immune systems. Recent studies have highlighted the dangers of consuming these foods, but a new 50-year analysis from the University of Michigan has uncovered another concerning link — their role in binge eating.
The research, which spans from 1973 to 2023, found that 70 percent of the foods consumed during binge eating episodes were ultra-processed. In contrast, only 15 percent were minimally processed, such as fruits and vegetables. It was rare for individuals to binge on minimally processed foods alone, suggesting a strong correlation between ultra-processed foods and overeating patterns.
The study points to a “major blind spot” in eating disorder research, according to the researchers. While binge eating has become increasingly prevalent, the specific role of ultra-processed foods in triggering these episodes has largely been overlooked.
“Binge eating did not begin appearing in the scientific literature until the 1970s — around the same time highly processed foods became increasingly dominant in the food environment,” the researchers noted. “Yet, eating disorder research has rarely examined how the foods themselves might contribute to binge eating.”
This connection could explain why binge eating has become the most common eating disorder in the U.S., with a 1 to 3 percent chance of developing the condition, according to Kristin Javaras, an assistant professor of psychology at Harvard Medical School.
Binge eating can lead to serious health complications, including weight gain, obesity, heart disease, Type 2 diabetes, gallbladder disease and depression, as noted by the University of Southern California’s Keck Medicine.
Common Binge Eating Foods
The most common foods consumed during binge eating episodes across the decades include cake, ice cream, cookies, chocolate, pastries, pizza and chips. These items are often high in refined carbohydrates and fats, making them easy to over-consume.
While the exact reasons behind this pattern remain unclear, the researchers suggest that both psychological factors and the way these foods are manufactured may play a role.
Ashley Gearhardt, a psychology professor at the University of Michigan, emphasized the importance of questioning whether these foods are simply being over-consumed or if they are designed in ways that promote overeating.
“These findings raise an important question: if the same types of foods keep showing up in binge episodes, we have to ask whether they are simply being over-consumed — or whether they are designed in ways that promote that pattern of use,” Gearhardt said.
Gearhardt was also part of previous research highlighting that many Generation X and Baby Boomer adults show signs of addiction to ultra-processed foods.
The Impact of Food Environment
Lucy Loch, a graduate student at the university, explained that today’s older adults were in a key developmental period when the nation’s food environment changed significantly.
Today, ultra-processed foods make up more than half of the U.S. diet, according to the Centers for Disease Control and Prevention. They also account for 73 percent of the country’s food supply, as reported by Northeastern University.
These findings highlight the need for further research into how the food environment influences eating behaviors and contributes to the rise of binge eating.
Understanding the Role of Ultra-Processed Foods
Ultra-processed foods are often engineered to be highly palatable, with added sugars, salts and fats that can trigger overeating. This design makes them particularly appealing and difficult to resist, especially for individuals struggling with binge eating.
While the psychological aspects of binge eating are well-documented, the role of food composition in driving these behaviors is still being explored. Researchers believe that understanding this connection could lead to more effective interventions and treatments.
As the prevalence of ultra-processed foods continues to grow, so does the need for awareness and education about their impact on health and eating habits.
