What does a respiratory quotient of 0.7 mean?
                                
                                
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                                    3 min read                                
                            
                                A respiratory quotient (RQ) of 0.7 is the lowest standard value, signaling a significant shift in the body's primary energy source. Specifically, a respiratory quotient of 0.7 mean the body has moved from using carbohydrates to predominantly burning fats for energy production, a state often observed during prolonged fasting or a ketogenic diet.