Sunshine in a Bottle: Why Vitamin D3 is Essential for Your Baby
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Time to read 4 min
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Time to read 4 min
Sometimes called “vitamin sunshine,” Vitamin D is a key nutrient for maintaining healthy bones and absorbing calcium and phosphorus. Vitamin D is a fat-soluble vitamin used by many of the body’s organs and tissues, helping to control infections and reduce inflammation in the body. As a result, it can help you, and your baby recover from colds quicker and be protective in maintaining overall health.
Vitamin D3 is absorbed by the skin or from foods we eat. However, it isn't ready to be used by the body just yet; it remains inactive until it goes through a more complex process. It is stored in fat cells and stays dormant until it is needed.
Vitamin D has to be metabolized by the body into its hormonally active form called 25-dihydroxycholecalciferol. (8) It is first converted in the liver before entering the bloodstream. Then, it is taken up by the kidneys and converted to the hormonally active form of Vitamin D called calcitriol. This active form of Vitamin D helps the gut absorb calcium and prevents calcium loss from the kidneys.
If a mother’s vitamin D levels are low, it can impact her baby’s vitamin D levels at birth. One study showed that 81% of women of childbearing age do not have sufficient levels of vitamin D.(9) This leaves infants at risk for vitamin D deficiency.
Infants need Vitamin D for healthy bones and immune systems. In addition, because of its role in calcium absorption, it is necessary for helping your baby develop strong teeth and reduce the risk of tooth decay.
How much Vitamin D breast milk has depends on the mother's Vitamin D status. The amount of Vitamin D is higher in the fattier parts than in the more watery parts. (1)
Breastmilk is a complete food for your baby. It is recommended to exclusively breastfeed for the first six months of the baby's life and continues for the first year, beginning to add in foods after the first six months that are complementary to breastfeeding. After the first year, the American Academy of Pediatrics recommends that breastfeeding continues until age two or as long as mutually desired. (2)
A study of 107 healthy caucasian women in a nine-month follow-up study found that their exclusively breastfed infants received <20% of the daily recommended amount of Vitamin D during the first year of life. (5)
The best way to know that your baby is getting the amount of Vitamin D is to give them a high-quality Vitamin D3 supplement. The American Academy of Pediatrics recommends that all infants be supplemented with Vitamin D3, whether they are exclusively breastfed or partially breastfed. In addition, babies should be supplemented with Vitamin D3 for the first year after birth. (10) Premature infants are not more deficient in Vitamin D than babies born at term, and the recommendation for supplementation is the same.
RDA - stands for Recommended Daily Allowance.
Although Vitamin D3 and vitamin K2 have their respective benefits, they can work together to transport calcium best when taken together.(6) Vitamin D3 is a vehicle moving calcium where it needs to be.
Vitamin D3 helps absorb calcium from your intestines into the blood. Vitamin K2 picks it up from there and gets it to your bones.
Vitamin D2 doesn’t raise levels of the active form of Vitamin D in our bodies as well as vitamin D3. So, when choosing a vitamin D supplement, go for one that contains vitamin D3.
Offering your baby foods high in Vitamin D helps their overall status but is not considered enough. So getting out in the sunshine, eating a diet of Vitamin D-rich foods, and taking a high-quality D3 + K2 vitamin supplement will ensure your baby is getting what they need.