Is it okay for my dog to eat apples?

My crazy dog likes to steal apples from our fruit basket. My family thinks it’s cute that she does this. I don’t like her taking anything without us giving it to her but that’s another thing altogether. I just want to know if an occasional apple will cause any problems such as diarrhea or other ailments. I’m very picky about what she eats (for example no dog food with corn, wheat, or soy) and don’t want any problems down the road.

She really loves apples. Crazy.