Does Nicotine Ruin Ketosis? The Complete Metabolic Guide
                                
                                
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                                    4 min read                                
                            
                                Studies have shown that people who smoke are 30 to 40 percent more likely to develop type 2 diabetes than non-smokers, a condition directly tied to insulin function. This raises a critical question for dieters: does nicotine ruin ketosis, or are the effects less direct?