Flour is made from grains (barley, wheat, corn, etc.). ), in which the sugar content and meaning are carbohydrates in grains (mostly starch), so no flour is sugar-free;

Low sugar includes whole wheat bran, oats and so on. Flour with low sugar content has buckwheat flour, but it doesn't mean there is no sugar;

Sugar is needed by human body, but we should pay attention to the intake of different people;