Eating the whole apple—including the core and seeds—is safe for most people, but seeds are the primary concern. Apple seeds contain amygdalin, which can release small amounts of cyanide when digested.

It is up to you whether you eat the core of your apple - though some people choose not to, fearing it may be poisonous. That's only partly true, says Germany's Centre for Nutrition (BZfE). Apple cores ...

You can easily find people who adore all varieties of apples, but you'd be hard pressed to find someone that eats the seeds. (Though even with all those unconsumed seeds, we've lost 17,000 different ...