Ultraprocessed Foods Linked to 17% Higher Diabetes Risk: Study Insights

A new study of over 300,000 Europeans finds a 17% rise in type 2 diabetes risk for every 10% increase in ultraprocessed food intake. Learn more.

Major Study Links Ultraprocessed Foods to Diabetes Risk

A comprehensive new study published in The Lancet Regional Health – Europe has strengthened the evidence connecting ultraprocessed foods to type 2 diabetes. Researchers tracked dietary habits and health outcomes of over 300,000 adults from eight European countries for an average of 10.9 years. They found that for every 10% increase in the proportion of ultraprocessed foods in a person's diet, the risk of developing type 2 diabetes rose by 17%.

What Are Ultraprocessed Foods?

Ultraprocessed foods include packaged snacks, sodas, hot dogs, chicken nuggets, and ice cream. They typically contain synthetic additives such as preservatives, emulsifiers, and artificial dyes, which are absent from minimally processed whole foods. Their high caloric density and low satiety can lead to overconsumption.

Study Design and Limitations

Dr. Nerys Astbury, an associate professor of diet and obesity at the University of Oxford, notes that while the study adds to a growing body of evidence, it is observational and cannot prove causation. The association is strong but requires further experimental research to confirm a direct cause.

Why Ultraprocessed Foods May Raise Risk

Lead author Dr. Samuel Dicken, a clinical scientist at University College London, explains that ultraprocessed foods are energy-dense, making it easier to consume excess calories before feeling full. This can lead to weight gain and increased body fat, key risk factors for type 2 diabetes. In fact, increased waist-to-height ratio—indicating higher belly fat—accounted for nearly half of the observed diabetes risk.

Ethical and Practical Considerations

Sarah Gallo of the Consumer Brands Association cautions against categorically demonizing such foods, arguing it could reduce access to nutritious options, increase food waste, and worsen health disparities. Dr. Hilda Mulrooney from London Metropolitan University adds that processing itself is not harmful; it can enhance safety and extend shelf life. The concern lies with foods that bear little resemblance to their original ingredients.

Tips for Making Healthier Choices

Dr. Dicken recommends simple swaps: replace sugary drinks with water, and choose fruit or unsalted trail mix instead of chips. Dr. Mulrooney advises reading food labels—long ingredient lists with many additives signal high processing levels. Keeping a food diary for a few days can reveal how much of your diet is ultraprocessed.

A Holistic Approach to Diabetes Prevention

Diet alone is not the only factor. Dr. Mulrooney emphasizes the importance of regular physical activity, adequate sleep, proper hydration, and avoiding smoking and excessive alcohol. Combined with a balanced diet rich in whole foods, these habits significantly reduce type 2 diabetes risk. As research evolves, staying informed and making mindful choices remains the best strategy for long-term health.