Why do I feel bad after eating carbohydrates?
                                
                                
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                                    4 min read                                
                            
                                The post-meal 'food coma' is a common phenomenon, with studies linking high-carbohydrate meals to increased serotonin production and subsequent tiredness. For many, however, feeling unwell after eating carbohydrates can signal underlying metabolic or digestive issues that go beyond simple sleepiness.