Mung beans will not return milk. Mung beans are soy products, which are rich in protein and can supplement the body with nutrients. It is best to eat more high-protein foods during breastfeeding, such as drinking more milk, eating more eggs and other foods. You need to eat more vegetables and fruits, which can replenish vitamins and have a certain promotion effect on milk secretion. During breastfeeding, you also need to pay attention to getting enough sleep and avoid being anxious and angry. If you plan to return milk, you need to eat more leeks, fennel, pepper and malt, which have the effect of returning milk. You can also take large doses of vitamin B6 when returning milk, the specific dosage needs to follow medical advice, and you can also use fried malt to make water to drink. You can also drink water with fried wheat sprouts. You can use towels to warm up your breasts and massage them during breastfeeding. Note that you should not drink chicken soup, fish soup, or eat meat and other foods, which can reduce the secretion of milk, but it will slowly return to milk.