Vinegar can be consumed in moderation during lactation to increase appetite and promote the absorption of vitamin C and nutrients. It is not recommended for breastfeeding women if they have stomach ulcer or allergic to vinegar. Lactating women are prone to lower gastrointestinal function, such as constipation, bad breath and other symptoms. Moderate consumption of vinegar can improve the gastrointestinal self-defense ability, promote the absorption of vitamin C, calcium and minerals, and then promote digestion and absorption, increase appetite and improve the function of gastrointestinal tract. When vinegar is consumed together with other foods, it helps to dissolve mineral nutrients such as calcium, magnesium, iron and zinc which originally existed in insoluble state in foods, forming acetates, which in turn are more easily absorbed by lactating women. At the same time, vinegar is rich in amino acids, sugars, organic acids and inorganic substances and vitamins, which can assist in lowering blood pressure and blood cholesterol when consumed appropriately. Precautions 1, during the lactation period, we should avoid cold, greasy and stimulating food, keep a light diet, diversify food and rationalize the diet structure, we should eat highly nutritious food, such as eggs, milk, lean meat, etc. We should also eat vitamin-rich fruits and vegetables to improve the quality of milk; 2, when a lactating woman is allergic to vinegar, she should forbid to eat vinegar to avoid a series of It is not suitable for eating vinegar when suffering from gastric ulcer disease, because vinegar itself is rich in organic acid, which can corrode the mucous membrane of stomach and intestines, and can make the digestive organs secrete a lot of digestive juices, thus increasing the digestive effect of stomach acid and leading to the aggravation of ulcer. There are also some mothers who feel discomfort when eating edible vinegar and observe that it is really related to it, it is also recommended not to eat it again.