By Dr. Sanchari Sinha Dutta, Ph.D. Reviewed by Lauren Hardaker Nov 25 2025 A new longitudinal study shows that rising ultra-processed food intake in young adults with a history of overweight or obesity sharply increases prediabetes risk. This shows how everyday eating habits may quietly push glucose regulation toward dangerous territory. Study: Ultra-processed food intake is associated with altered glucose homeostasis in young adults with a history of overweight or obesity: a longitudinal study