Nutritional value: Kidney bean and soybean are both beans rich in protein, minerals and vitamins, but the protein content of kidney bean is higher than that of soybean, and its protein amino acid composition is closer to human needs, so the nutritional value of kidney bean is higher.

Taste: stewed pig's trotters with kidney beans are more delicious than stewed pig's trotters with soybeans, because stewed kidney beans are softer and more tasty, and the taste of kidney beans is more delicate.