To improve the quality of breast milk, you need to eat foods and seafood rich in vitamins and high-quality protein, eat a variety of foods, but not too much, happy mood, get enough sleep, to promote milk secretion, avoid smoking and alcohol, avoid strong tea and coffee. 1. Choose foods and seafood rich in vitamins and high-quality proteins: ensure that the total amount of 220g of fish, poultry, eggs and lean meat per day, the total amount of milk 400-500mL per day, 1-2 times a week to eat animal liver, and at least 1 time a week to intake of seafood such as marine fish, kelp, nori, and other seafood. 2. Food variety, but not excessive: reasonable diet, moderate intake of meat, poultry, fish, eggs, milk and other animal foods, but not excessive, to ensure that the daily intake of 500g of vegetables, eat more fresh fruits and vegetables. 3. Pleasant mood, adequate sleep, promote milk secretion: Breastfeeding mothers are positive and optimistic, good psychological state, self-confidence, can help milk discharge, and vice versa, is not conducive to the synthesis of milk. Lack of sleep after delivery is also detrimental to milk secretion. Ensure that breastfeeding mothers get enough sleep every day and improve the quality of their sleep, which will help milk secretion. 4. Avoid tobacco and alcohol, strong tea and coffee: smoking and drinking are prohibited for breastfeeding mothers, mothers and babies are prohibited from inhaling second-hand smoke, and breastfeeding mothers should avoid drinking a lot of coffee and strong tea so as not to consume too much caffeine. The quality of breastmilk needs to be improved by diversifying the diet of breastmilk mothers to ensure comprehensive and balanced nutrition.