A detailed analysis of over 50 studies involving nearly 9 million adults has provided further evidence that ultra-processed foods negatively impact health. The findings show that a diet high in items like cookies, chips, cakes, and fast food can significantly elevate the risk of chronic diseases.

Read More

Specifically, the research indicates that consuming a diet rich in ultra-processed foods raises the risk of cardiovascular events, diabetes, and obesity by approximately 25%. Additionally, there is a 27% increased risk of depression and anxiety, alongside a 31% higher likelihood of developing digestive diseases. Furthermore, every additional 100 grams of these foods consumed daily correlates with a 4% increased risk of cancer and a 3% higher risk of death from any cause.

Dr. Xiao Liu, the lead author and a physician at Sun Yat-Sen Memorial Hospital, emphasized the need for a healthier diet, suggesting that society should reduce the intake of ultra-processed foods and increase vegetable consumption.

The study also discusses the potential "cocktail effect" of various additives in ultra-processed foods, which may have a cumulative toxic impact on health. Previous research has linked these foods to gut health issues, inflammation-related cancer, and diabetes due to insulin resistance. Additionally, compounds formed during food processing are associated with an increased incidence of cardiovascular diseases.

The study relies on self-reported data from journals and questionnaires, which raises questions about the accuracy of food consumption assessments. According to Stanford Medicine, around 60% of the American diet comprises ultra-processed foods, which are often more affordable than healthier choices.

While many ultra-processed foods are detrimental to health, not all are classified as junk food; for example, yogurt and hummus may offer better nutritional value. A separate study from Tufts University found that higher consumption of ultra-processed foods corresponded with poorer health outcomes, indicating that factors beyond basic nutrients, such as changes in food structure and the presence of additives, may pose health risks not accounted for in traditional nutritional assessments.