One 100 g serving of formulated bar, mars snackfood us, snickers marathon energy bar, all flavors has 386 calories, 50.3 g of carbs, and 6.7 g of fiber.
Full macro and micronutrient breakdown, plus how this compares across diets, is on the Formulated bar, MARS SNACKFOOD US, SNICKERS MARATHON Energy Bar, all flavors nutrition facts page.