You can drink mash while breastfeeding, but it is usually not recommended. Mash is mainly a kind of drink containing alcohol made from glutinous rice, wine quarts and water through fermentation, and it contains 22.4g of carbohydrates and 100 calories of energy per 100g on average, etc. Drinking it in moderation can replenish carbohydrates and energy. However, breastfeeding women are usually not recommended to drink it or drink too much of it, because mash contains alcohol, and when breastfeeding women drink it, the alcohol may enter the baby’s body through breast milk, which is not good for the baby’s health. In addition, people who are allergic to alcohol are also not recommended to drink mash. If you experience any discomfort after drinking it, you should seek medical attention. Breastfeeding women should drink more nutritious soup, such as fish soup, chicken soup, etc., prohibit smoking and alcohol, avoid strong tea and coffee, pay attention to balanced nutrition, and also pay attention to warmth, drink more warm water, and rest more.