What is the 3 1 keto diet?
                                
                                
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                                    4 min read                                
                            
                                The classic ketogenic diet has been used for therapeutic purposes since the 1920s, particularly in managing drug-resistant epilepsy. A highly restrictive version of this, the 3 1 keto diet, follows an extremely precise ratio of fats to carbohydrates and protein, requiring medical supervision.