What is the Problem with Tannic Acid?
                                
                                
                                •
                                
                                
                        
                                    
                                    5 min read                                
                            
                                Tannic acid, a natural polyphenol found in many plants like tea, is generally safe in food amounts, but excessive exposure can cause significant health and environmental problems. Research indicates high doses can lead to digestive distress, nutrient deficiencies, and liver damage, while its industrial use is a source of severe pollution.