The seeds of apples are indeed poisonous. Apple seeds contain a toxic cyanogenic glycosides, known as amygdalin, after entering the human body will be digested and metabolized into cyanide by bacteria in the human intestinal tract, which will adversely affect human health, so you need to pay attention to avoid eating apple seeds when eating apples. Although the seeds of apples contain amygdalin, but the content is minimal, if you take an apple accidentally swallowed 1 to 2 apple seeds generally do not have a problem. However, if a large amount of apple seeds are consumed, and the seeds are crushed and swallowed, certain toxic side effects may occur. If abdominal pain, diarrhea, nausea, vomiting and other symptoms occur after consuming too many apple seeds, you need to consult a doctor in time and follow the doctor’s instructions.