How long do fish stay in your body?
                                
                                
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                                    3 min read                                
                            
                                According to research from Gastro MD, lean fish can digest in as little as 3 to 4 hours, making it a faster-digesting protein compared to red meat. So, to address the popular question, "how long do fish stay in your body?" the answer is far less time than many might assume, with the process being influenced by several key variables. It's a testament to fish's unique muscular structure and fat content that it passes through the digestive system with relative speed, contributing to its reputation as a light and healthy meal.