It has long been known that there is an association between food and pain, as people with chronic pain often struggle with their weight. Researchers at the Del Monte Institute for Neuroscience may have found an explanation in a new study that suggests that circuitry in the brain responsible for motivation and pleasure is impacted when someone experiences pain. “These findings may reveal new physiological mechanisms linking chronic pain to a change in someone’s eating behavior,” said Paul Geha, M.D., lead author on the study published in PLOS ONE. “And this change can lead to the development of obesity.”

Finding pleasure in food comes from how our brain responds to what we are eating. In this study researchers were looking at the brain’s response to sugar and fat. Using a gelatin dessert and pudding, researchers altered the sugar, fat, and texture of the foods. They found that none of the patients experienced eating behavior changes with sugar, but they did with fat. Those with acute lower back pain who later recovered were most likely to lose pleasure in eating the pudding and show disrupted satiety signals — the communication from the digestive system to the brain — while those with acute lower back pain whose pain persisted at one year did not initially have the same change in their eating behavior. But chronic lower back pain patients did report that eventually foods high in fat and carbohydrates, like ice cream and cookies, became problematic for them over time and brain scans showed disrupted satiety signals.

Have low back pain and want to avoid becoming obese? Chiropractors are experts in treating low back pain with hands on, opioid-free care and counseling that can keep you in good shape.

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