One 100 g serving of formulated bar, mars snackfood us, snickers marathon double chocolate nut bar has 377 calories, 51.7 g of carbs, and 10.5 g of fiber.
Full macro and micronutrient breakdown, plus how this compares across diets, is on the Formulated bar, MARS SNACKFOOD US, SNICKERS MARATHON Double Chocolate Nut Bar nutrition facts page.