Gastroenterologist Warns Fast Eating Harms Digestion And Increases Diabetes Risk
Fast eating during lunch may harm digestion and raise metabolic health risks.
Health experts have raised concerns about the growing habit of eating meals too quickly, warning that it can negatively affect digestion, appetite control, and long-term metabolic health. A gastroenterologist has highlighted that finishing lunch in just a few minutes without proper chewing may appear convenient in a busy schedule, but it can place unnecessary strain on the digestive system and increase the risk of several health complications over time.
The issue is especially common during lunch hours, when many working individuals tend to rush through meals while continuing office tasks such as attending calls, replying to emails, or joining meetings. This multitasking habit often leads to food being consumed within five to ten minutes, leaving little time for proper digestion. According to Dr Abhishek Deepak, senior consultant in gastroenterology at Fortis Greater Noida, this routine may seem efficient but is not aligned with how the human body is designed to process food.
Explaining the digestive process, the specialist noted that digestion begins in the mouth, where chewing breaks food into smaller particles and mixes it with saliva. Saliva contains enzymes that initiate the breakdown of food before it reaches the stomach. When food is eaten too quickly, it bypasses this initial step, forcing the stomach to handle larger, less-prepared pieces, which can slow digestion and increase discomfort.
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As a result, individuals may experience symptoms such as bloating, heaviness after meals, acid reflux, heartburn, upper abdominal discomfort, and a prolonged feeling of fullness. These symptoms may appear mild initially but can become persistent if fast eating continues regularly, potentially affecting overall digestive comfort and daily well-being.
Beyond digestion, fast eating can disrupt appetite regulation. Hormones such as cholecystokinin (CCK), glucagon-like peptide 1 (GLP-1), and peptide YY (PYY) help signal fullness to the brain, but these signals typically take 15 to 20 minutes to register. Eating too quickly may lead to overeating before the brain recognizes satiety, contributing to weight gain, increased waist circumference, and higher risk of insulin resistance and fatty liver disease over time.
Doctors recommend slowing down meal consumption by chewing thoroughly, pausing between bites, avoiding distractions like phones or work during meals, and starting with fiber-rich foods such as vegetables. Recognizing early fullness cues and allowing at least 20 minutes for meals can significantly improve digestion and support better long-term metabolic health.
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