There's nothing quite like the pie your mom makes when you visit home. Whether it's apple, pumpkin, cherry, or some other delicious thing, it always brings a sense of comfort and warm, fuzzy memories of childhood. We just love filling up on dessert then curling back up in the single bed we used to sleep in as kids. Fortunately, your mom's homemade pie is not going to give you cancer. It's certainly not great in terms of calories and sugar but indulging every so often is not a problem.
The real issue here is frozen pies that are made with all kinds of questionable ingredients, including refined white flour, preservatives, sugar, and extremely limited amounts of real fruit. Add some Cool Whip or custard on top and you've got yourself a cancer risk right there.