The narrative that apple seeds are lurking chemical traps makes for great clickbait, but the numbers tell a calm, unequivocal story. Amygdalin is a documented botanical fact, not an urban legend; however, human physiology easily handles the tiny amounts released through normal eating.
Unless you go out of your way to collect dozens of apples, crack their protective seed coats, crush hundreds of pips into powder, and swallow the bitter mass in one sitting, apple cores pose no real-world threat. Enjoying an entire fruit, seeds and all, remains an ordinary, harmless habit.