The mother should not only ensure her own nutrition during breastfeeding, but also provide her baby with nutritious milk, so it is not recommended that the mother lose weight during breastfeeding to avoid affecting her health and the growth and development of her child. The first thing you need to do is to take care of your baby’s health. Avoid consuming too much free sugar and saturated fatty acids, which are detrimental to digestion while hindering weight loss. Eat more chicken breast, tenderloin, carp, tofu, milk, potatoes, corn and a variety of fresh leafy greens, and less fried chicken, barbecue, desserts and other meat and greasy food, so that the diet structure is balanced; 2, appropriate exercise: breastfeeding is not yet fully recovered, remember to exercise soothing and gentle, can choose brisk walking, postpartum yoga, Pilates, rehabilitation exercises, etc., to avoid strenuous exercise and a lot of exercise. One hour a day is best to avoid sports injuries or delayed recovery. Weight loss during breastfeeding needs to start at least 42 days after delivery to ensure postpartum recovery time. And weight loss must not be done with dieting or medication to prevent problems such as adverse effects on your own recovery and fetal health. In addition, the speed of weight loss should be properly controlled, gradual and according to the ability, not just pursuing speed, to avoid losing weight too fast and affecting lactation.