The efficacy of banana juice: 1, which can prevent the occurrence of hypertension, because banana juice is rich in potassium, and potassium has a very strong regulatory effect on blood pressure. Drinking banana juice properly and supplementing potassium have a very obvious effect on preventing hypertension. 2. It can stimulate appetite and promote digestion, because banana juice is rich in organic acids, which can stimulate the secretion of digestive juice well, thus improving the digestive function of the body. 3, can boost mood and prevent the occurrence of depression, because banana juice is rich in 5- hydroxytryptamine, 5- hydroxytryptamine can make the mood more pleasant, and drinking banana juice properly has obvious effect on preventing depression. Carrots, also known as carrots, carrots and wild carrots, are rich in sugar, fat carotene, vitamin B 1 and B2, vitamin A, iron and other nutrients. Among them, carotene has hematopoietic function, can improve anemia or cold blood, and can also be converted into vitamin A in vivo, benefiting liver and improving eyesight, protecting eyesight, preventing night blindness, and is also beneficial to bone growth, enhancing immunity and preventing cell cancer. Carrots also contain plant fiber, which can increase intestinal peristalsis and play a role in relaxing bowels and losing weight. It also has the effects of lowering blood pressure, preventing cancer and caring skin. Not suitable for eating with peppers and white radishes; It is not advisable to put vinegar when frying and stewing; People with spleen deficiency in loose stool should not eat carrots raw.