Nutrition Diet: Does fasting for 18 hours do anything? The metabolic science explained
                                
                                
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                                    5 min read                                
                            
                                According to researchers at Johns Hopkins, our bodies evolved to go for extended periods without food, triggering a "metabolic switch" that taps into stored fat for energy. This foundational principle helps explain why many ask: **Does fasting for 18 hours do anything?** and discover significant metabolic benefits.