Apples ripen every autumn, and with the help of preservation technology, apples can be eaten all year round. Apple seeds are not recommended when eating apples because apple seeds contain a plant compound called amygdalin.
Amygdalin is part of the seed's chemical defense system and is converted to cyanide in the body when the seeds are chewed and digested. Cyanide is highly toxic, it interferes with the oxygen supply to cells and can cause death within minutes in high enough doses.
However, the cyanide released by apple seeds is very small, and you need to Eat About 150 to 200 Apple Seeds at a Time to Be Poisoned. An average apple contains only about five to eight seeds, and even if a few apple seeds are eaten by mistake, there will be no symptoms of poisoning.Source:https://www.quora.com
