What Does Lactic Acid Do to Fat Metabolism?
                                
                                
                                •
                                
                                
                        
                                    
                                    3 min read                                
                            
                                Contrary to the long-held belief that lactic acid is merely a waste product causing muscle burn, modern research has shown it is a critical signaling molecule that regulates fat metabolism. Its effects on how your body stores and burns fat are far more complex and nuanced than previously thought, depending heavily on factors like exercise intensity.