What is carnivore lethargy? Causes, duration, and solutions
                                
                                
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                                    4 min read                                
                            
                                Up to 50% of people transitioning to a ketogenic or carnivore diet experience temporary fatigue known as the 'keto flu' or 'carnivore lethargy'. This feeling of sluggishness is a common part of the metabolic shift your body undergoes as it stops relying on carbohydrates and begins burning fat for fuel.