How Frequently is Too Frequently to Inhale a Bag of Potato Chips?

My one-bag-a-day habit has to go, doesn’t it?

‘Boil ‘Em, Mash ‘Em, Stick ‘Em in a Stew‘: Ranking Potato Dishes by How Healthy They Are

Pancaked? Tater tot-ed? Baked and topped with a gallon of sour cream? Which is most likely to turn me into a total spud?