One 100 g serving of pork, fresh, variety meats and by-products, stomach, cooked, simmered has 157 calories, 0.1 g of carbs, and 0 g of fiber.
Full macro and micronutrient breakdown, plus how this compares across diets, is on the Pork, fresh, variety meats and by-products, stomach, cooked, simmered nutrition facts page.