Why Does Keto Dehydrate You? Unpacking the Science of Fluid Loss
                                
                                
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                                    4 min read                                
                            
                                When starting a ketogenic diet, many people experience rapid water weight loss, a phenomenon often mistaken for initial fat loss. This quick fluid reduction is a primary reason why the low-carb diet can lead to dehydration and the common side effects known as the "keto flu".