Skipping oil occasionally during breastfeeding will not affect breastmilk, but if you skip oil for a long time it will affect breastmilk production and breastmilk quality. Cooking oil contains energy, fat, unsaturated fatty acids, saturated fatty acids, energy, calcium, potassium, zinc, iron and other nutrients. Moderate consumption of cooking oil during breastfeeding can replenish the nutrients needed by the body and is also helpful for breast milk production. If you do not eat oil occasionally or reduce the amount of oil during breastfeeding, it will not affect the secretion of breastmilk, and you can eat more lean meat, eggs or fish and shrimp and other high-protein foods. However, if the oil is banned for a long time or completely, it may lead to a lack of nutrients in the female body, and insufficient nutrition will affect breast milk secretion, resulting in a decrease in breast milk or affecting the quality of breast milk. During breastfeeding, it is important to pay attention to balanced nutrition, avoid picky eating, and diversify your diet in order to increase breast milk secretion.