Apple Seeds Hide a Toxic Secret—Here's How Much Is Dangerous
Apple seeds contain a naturally occurring compound that can release cyanide when digested. While eating a few by accident is unlikely to cause harm, consuming large amounts may pose serious health risks. Children and those regularly drinking whole-apple juices or smoothies face higher dangers due to their size or repeated exposure.
The toxin in apple seeds comes from amygdalin, a substance that breaks down into hydrogen cyanide during digestion. An average seed holds 0.4–0.6 mg of cyanide, meaning an adult would need to eat around 200 whole seeds at once to risk acute poisoning. For a child, far fewer could reach toxic levels because of their lower body weight.
Chewing or crushing the seeds releases more cyanide than swallowing them whole. This makes accidental poisoning more likely if seeds are ground up in juices or smoothies. Over time, frequent consumption of such drinks could lead to chronic exposure, particularly for vulnerable individuals.
Mild side effects from eating apple seeds include stomach pain, dizziness, nausea, and headaches. Severe cases, though rare, may cause seizures or unconsciousness. Anyone experiencing these symptoms should seek emergency medical help immediately.
For concerns about accidental ingestion, Poison Control can be reached at 800-222-1222. While a few seeds are generally safe, experts advise against eating them deliberately due to their poisonous nature.
Apple seeds remain a low-risk food hazard for most people when consumed in small quantities. However, crushing them or eating large amounts—especially for children—can lead to dangerous cyanide exposure. Proper awareness and caution help prevent accidental poisoning from this common fruit.
