Apple seeds do contain a small amount of a substance called amygdalin, which can release cyanide when it is broken down by the body. While this is not typically a concern in small amounts, it is important to note that consuming large quantities of apple seeds or other foods that contain amygdalin can be toxic and potentially lethal.

It is important to remove apple seeds before consuming the fruit, particularly if giving it to young children or individuals who may be more susceptible to the effects of cyanide. Additionally, it is always recommended to consume foods in moderation and to consult a healthcare professional if you have any concerns about your diet or potential exposure to toxins.