“Hidden poison”: American health authority urges caution when eating apples

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According to the Center for Disease Control and Prevention, apple seeds contain a “hidden toxin” that can have dangerous health consequences.

One apple a day keeps the doctor away!—or not? According to Statista, apples are extremely popular in almost all parts of the world. Although these fruits may seem harmless, they pose a health risk because their seeds apparently contain a toxic substance to humans.

CDC warns of “hidden poison” in apple seeds

Apples are generally good for your health, but the Center for Disease Control and Prevention, an agency of the US Department of Health and Human Services, warns against eating the seeds. This is because apple seeds contain the toxin amygdalin, and if consumed in large quantities, they can come into contact with the stomach’s digestive enzymes, releasing cyanide. If you swallow the seeds whole, there is no danger as their protective layer is strong, and they can be digested safely. However, if you chew the apple seeds, the protective layer dissolves, releasing the poison.

It takes a large amount of seeds to poison yourself

Cyanide prevents the body from actively processing oxygen, which is essential for human survival. According to the CDC, it can have a “bitter almond” taste but is generally tasteless and odourless. The symptoms of cyanide exposure usually include chest pain, confusion, dizziness, difficulty breathing, and headaches. It can also cause nausea, a disturbed heart rate and breathing rhythm, fatigue, and vomiting.

Cyanide is a deadly toxin usually associated with chemical warfare. According to the CDC, the lethal dose of cyanide is quite high and is around 70 kg. Therefore, accidentally swallowing a dose or two is not dangerous. It is estimated that you are only at risk if you swallow about 40 apple cores.

The US Agency for Toxic Substances and Disease Registry has issued a warning stating that even small amounts of cyanide can damage the heart and brain. In the worst case, it can even lead to coma or death. To be safe, experts recommend spitting out apple cores if they get into the mouth. The agency advises against eating pits from other fruits such as peaches, apricots, and cherries.