In my personal opinion, it is important for breastfeeding women to take 6400iu of vitamin D a day to ensure that the vitamin D content of their breast milk is not only beneficial for the development of the child, but I think it is also important for breastfeeding women to help. Because of the many problems I can see during the whole process of pregnancy, delivery and breastfeeding, especially joint and muscle discomfort, of course chronic diseases are related, but the triggering of inflammation should be considered to be related to vitamin D deficiency, which can have an anti-inflammatory effect by inhibiting cyclooxygenase (COX)2. , nitric oxide synthesis in the endothelium of ovariectomized rats was significantly reduced, and administration of 12 hours of skeletal triol, COX-2 inhibitors, or thromboxane – prostaglandin receptor antagonists restored renal vascular function. Over the years I have seen many patients with inflammatory arthropathies in the clinic whose inflammation improved better with vitamin D supplementation than without, including supplementation with bisphosphonates, which I believe has a similar effect to that of kidney supplementation in Chinese medicine. How to improve infant vitamin D intake A study has shown that a daily supplementation of 6400 IU of vitamin D for lactating women can ensure that their breast milk contains vitamin D, thus ensuring the normal needs of their infants. Therefore, vitamin D supplementation for mothers can be an optional way to ensure the infant’s vitamin D supply. Dr. Bruce W. Hollis, a professor from the Southern California Medical School and Children’s Hospital, published the results of their randomized clinical test in the latest issue of Pediatrics. They studied whether maternal vitamin D supplementation helps infants’ vitamin D absorption by means of a double-blind test. The study divided the lactating women in the study into three groups that were given different doses of vitamin D (400, 2,400, and 6,400 IU/day), after which the levels of vitamin D in the infants they nursed were measured. The study lasted for a total of 6 months. The study showed that a 6400 IU/day supply of vitamin D significantly increased the infants’ vitamin D levels. This indicator level was on par with providing vitamin D directly to the infants. However, the researchers also noted that when they began their trial, the medical school set an upper limit of 2,000 IU of vitamin D per day, which was significantly lower than the minimum effective dose (6,400 IU) from their experiment. In addition, the College of Medicine noted that vitamin D toxicity could lead to risks of calcium hemorrhage, calcium urine, and kidney stones. Despite the proven toxicity of vitamin D, doctors continue to believe that infants’ daily intake of vitamin D from breast milk falls far short of their needs and often require additional vitamin supplements. Insufficient vitamin D intake during the adult years puts them at risk for chondromalacia. In this regard, the medical community generally advocates adding a certain amount of vitamin D to the infant’s daily diet, which the American Academy of Pediatrics has set at 400 IU/day. However, the lack of microbial D in breast milk has also become a concern. Doctors began to think about how to increase the natural levels of vitamin D in breast milk, rather than just supplying it directly to the infant. That’s what led to this study.