One 100 g serving of beef, brisket, whole, separable lean and fat, trimmed to 1/8" fat, all grades, raw has 253 calories, 0.6 g of carbs, and 0 g of fiber.
Full macro and micronutrient breakdown, plus how this compares across diets, is on the Beef, brisket, whole, separable lean and fat, trimmed to 1/8" fat, all grades, raw nutrition facts page.