Vitamin D deficiency affects people across the lifespan. Breastfed babies don’t get enough vitamin D from breast milk, so they need to take supplements. As people age, it’s harder for their skin to produce adequate amounts of vitamin D, which may lead to deficiency.
Overview What is vitamin D deficiency? Vitamin D deficiency means you don’t have enough vitamin D in your body. It primarily causes issues with your bones and muscles. Vitamin D is an essential vitamin that your body uses for normal bone development and maintenance."Vitamin D deficiency results from lack of exposure to sunlight (for example: if you live in the northern hemisphere, [cover up with clothing, or simply avoid the sun and wear sunscreen]), impaired vitamin D absorption [due to a medical condition], medications that impair vitamin D absorption, and low dietary intake," added Dr. Shainhouse.
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