Children who regularly eat high-fat, high-sugar foods may experience lasting changes in the brain that continue long after their diets improve, according to a new study from University College Cork (UCC). Researchers also found that beneficial gut bacteria and prebiotic fibers could help reduce some of these long-term effects and support healthier eating behaviors later in life.
Scientists at APC Microbiome, a leading research center based at UCC, discovered that unhealthy diets during early life can alter how the brain controls appetite and feeding. These changes persisted even after the unhealthy diet ended and body weight returned to normal.
Today's children are surrounded by highly processed foods that are heavily marketed and easy to access. Sugary and fatty foods have become common at birthday parties, school events, sports activities, and even as rewards for good behavior. Researchers say this constant exposure may shape food preferences from an early age and encourage eating habits that continue into adulthood.
Childhood Diets and Long-Term Brain Changes
The study, published in Nature Communications, found that early exposure to calorie-dense, nutrient-poor foods can leave lasting effects on feeding behavior. Researchers used a preclinical mouse model and found that animals exposed to a high-fat, high-sugar diet early in life showed persistent changes in eating behavior as adults.
