From the Consumerist: "The Original Recipe [Double Down] sandwich will set you back about 540 calories, 32g of fat and 1380mg of sodium. The not-as-bad-for-you Grilled Double Down totals 460 calories, 23g of fat and 1430mg of sodium."
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects