A doctor has explained why some people feel the need to have a bowel movement immediately after eating.
According to a TikTok doctor, this common occurrence isn’t due to food passing straight through your system but is instead caused by the gastrocolic reflex—a natural bodily response. VeryWell Health describes this reflex as the stomach signaling the colon to contract, making room for new food by moving waste through the lower digestive tract.
Dr. Salhab explains that when food enters the stomach, it stretches, triggering signals to the brain that stimulate bowel movement. The waste expelled is from previously digested food, not the meal just consumed.
For those with irritable bowel syndrome (IBS), this reflex can be stronger, leading to cramping, bloating, diarrhea, or constipation. The Cleveland Clinic notes that managing diet and stress can help ease symptoms. Dr. Salhab reassures that while this reflex is normal, those experiencing discomfort can take steps to manage it.