An unsalted nut would be a much better choice. Or bake some unsalted sweet potato chips in coconut oil for her. Greys really need the vitamin A, which sweet potatoes are loaded with.
Agree with Timber. There's a LOT of salt in potato chips -- maybe try to rub some salt off on a paper towel or something first.
But yeah, I have given Snickers a few unhealthy treats over these years -- they see us eating and want some too! Esp french fries!