Both big black beans and small black beans belong to black beans. Although both are beans, both are called black beans, which have different effects, but eating more is good for people's health. Small black beans have diuretic effect, and people with urinary system problems can eat more. Moreover, big black beans can tonify the kidney, and people with weak waist and knees and easy fatigue can eat more big black beans. So the roles of the two are different. The effect of small black beans is not as good as that of big black beans. It is recommended to buy big black beans.

In fact, black beans and small black beans are the same thing, but they are called differently. Most people call black beans black beans.

Black beans are the valley of the kidney and enter the kidney. Has the effects of invigorating spleen, promoting diuresis, reducing swelling and reducing qi; Nourish kidney yin, moisten lung dryness, control wind and heat, promote blood circulation and detoxify; Anti-night sweats, blackening hair and prolonging life. Modern pharmacological studies have confirmed that black beans are rich in protein, lecithin, fat and vitamins, as well as melanin and nicotinic acid.

Eating black beans often can soften blood vessels, moisturize skin and delay aging. Especially patients with hypertension and heart disease.

Black beans and big black beans are the same species, but their application ranges are somewhat different. Small black beans are usually used as food. In daily life, almost every family has big black beans, which can also be used as stones, but more are used as medicine. Big black beans have been used to tonify the kidney. Traditional Chinese medicine has always been tangible and complementary. The shape of big black bean is similar to kidney. Through the research of contemporary experts, it is found that the components of big black bean have the effect of tonifying kidney. It's good to make porridge with big black beans and medlar.