A groundbreaking study published in *Nature Communications* has identified specific neurons in the brain that create and store "meal memories." These neurons, located in the ventral hippocampus, record not just *what* was eaten, but also *when* the meal occurred, forming what researchers call "meal engrams."
Meal Engrams and Eating Behavior
Researchers at the University of Southern California (USC) found that disrupting these meal engrams in lab rats led to overeating and a failure to remember where meals were located. This suggests a direct link between meal memory and the control of hunger. The study, published on June 11, 2025, offers insights into why individuals with memory problems or those who eat while distracted often overconsume food.
Implications for Weight Management
The findings suggest that focusing on meal memory could be crucial for weight management, potentially as important as food choices themselves. The study also highlights the importance of mindful eating, as distracted eating may impair meal memories and contribute to overconsumption. This research opens new avenues for understanding and treating obesity by enhancing memory around food consumption.