for people who want to lose weight. "Black rice" is all carbohydrates, but our body also requires fats and proteins and vitamins and minerals. For a balanced diet, carbs should make up about 55% of our total calories, fats about 35%, and proteins about 15%.
And it can do our bodies harm if we lose weight too quickly. Generally, losing one or two pounds per week is a reasonable goal.
By the way, 1 gram of fat = 9 calories (or Kcal).
