1 Different nutritional components: The nutritional components of black beans and small black beans are basically the same, and they are both rich in protein, dietary fiber, vitamin B 1 and B2, calcium, iron and magnesium. However, because the seeds of big black beans are bigger than those of small black beans, the protein, dietary fiber and nutritional density of big black beans are slightly higher than those of small black beans.
2. Different functional characteristics: Big black beans and small black beans also have some differences in functional characteristics. The effects of big black beans are mainly embodied in tonifying kidney and nourishing blood, nourishing yin and moistening dryness, clearing away heat and toxic materials, invigorating spleen and benefiting intestines, etc., and have certain dietotherapy effects on kidney deficiency, fatigue, anemia and constipation. The effects of small black beans are mainly embodied in invigorating spleen and qi, removing dampness and diuresis, clearing away heat and toxic materials, lowering blood lipid, etc., and have a certain dietotherapy effect on spleen and stomach weakness, edema, damp-heat phlegm and asthma, hyperlipidemia and so on.