What Foods Break Down Into Acetaldehyde? Understanding the Sources
                                
                                
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                                    5 min read                                
                            
                                According to the World Health Organization (WHO), acetaldehyde has been classified as a carcinogenic substance, highlighting the importance of understanding its presence in our diet. A wide variety of everyday foods naturally contain or break down into acetaldehyde, which is also produced during the body's metabolism of alcohol.