Why a broken cherry pit is different
Amygdalin belongs to a group of plant chemicals called cyanogenic glycosides. In an intact pit, it is kept apart from enzymes that can break it down. Crushing or chewing brings the ingredients together, starting reactions that can release hydrogen cyanide—a poison that interferes with the body’s ability to use oxygen.
The danger depends on how much cyanide is released, which can vary with the fruit and the number of pits chewed. The mere presence of amygdalin does not mean that touching or swallowing an unbroken pit exposes someone to the same dose: an intact pit generally keeps its contents contained and may pass through the digestive tract without being broken open.
The practical precaution
Don’t chew or deliberately crush cherry pits. If a child or anyone else has chewed several pits, seek advice promptly from a poison-control center or medical professional; symptoms of cyanide poisoning can include headache, dizziness, nausea, and difficulty breathing. The key distinction is whether the hard shell was broken, not simply whether a pit was swallowed.
