Is Gypsum Safe to Ingest? Understanding Food-Grade vs. Industrial Use
                                
                                
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                                    6 min read                                
                            
                                According to the U.S. Food and Drug Administration (FDA), food-grade calcium sulfate, a form of gypsum, is classified as Generally Recognized as Safe (GRAS) for human consumption within specific food products. This fact highlights a critical distinction: not all gypsum is created equal, and its safety for ingestion depends entirely on its purity and intended use.