The main ingredient of baked bran is vegetable protein, not fat or sugar. Therefore, it is relatively low in calories. In fact, a serving of baked bran has around 200-250 calories or so, which is less than many other foods.
Of course, the calorie content of a food depends on the specific preparation method and ingredients. For example, if a lot of oil, sugar, or other high-calorie ingredients are added, the calories in baked bran will certainly go up. However, simply baking bran is not a high-calorie food by itself.
Overall, if you enjoy the flavor of baked bran, you can enjoy it with confidence. Still, you need to be careful to eat a balanced diet with the right amount of a variety of nutrients, including protein, carbohydrates, fat, fiber, and a variety of vitamins and minerals.