What Happens When You Accidentally Eat an Apple Seed?
                                
                                
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                                    4 min read                                
                            
                                According to Britannica, it would take anywhere from 150 to several thousand crushed apple seeds to be at risk of cyanide poisoning, depending on the apple variety. A single apple, which contains only about five to eight seeds, poses no threat if its seeds are accidentally ingested whole or even lightly chewed.