Comment by jonah

Stonefruit pits contain cyanide. (Including almonds.) I made apricot preserves one time and the recipe called for slivered pits to add a bit of flavor. Research it, it appears that you'd need to eat several hands full to poison yourself. And since it doesn't bioaccumulate, eating tiny bits is probably okay. (YMMV/not a doctor/don't rely on this/etc.)