Quest Bar Protein Bar, Rocky Road Flavor 2.12 Oz20 g protein. Less than 1 g sugar (Not a low calorie food. See nutrition facts panel). QuestNutrition.com. (at)questnutrition. 13 g fiber (9 g total fat). 5 g net carbs. Gluten free. 20 g carbs - 13 g fiber - 2 g erythritol = 5 g net carbs.