Learn about vitamin D deficiency symptoms, causes, self-care, foods, weight gain and treatment. Depression, thyroid problems, osteoporosis, allergies, and certain cancers have been tied to vitamin D deficiency . Vitamin D deficiency or hypovitaminosis D is a vitamin D level that is below normal. It most commonly occurs in people when they have inadequate exposure to sunlight, particularly sunlight with adequate ultraviolet B rays (UVB). [1][2][3] Vitamin D deficiency can also be caused by inadequate nutritional intake of vitamin D; disorders that limit vitamin D absorption; and disorders that impair the conversion of vitamin D to active metabolites, including certain liver, kidney, and hereditary ... Vitamin D deficiency means that you don’t have enough vitamin D in your body. It's common and primarily causes issues with your bones and muscles. If you suspect you have vitamin D deficiency , it’s always best to get tested and work with a healthcare provider for the right treatment plan. FAQs on Vitamin D3 Deficiency Q1. How do I know if I have a vitamin D deficiency ? A blood test measuring 25-hydroxyvitamin D levels is the most accurate way to confirm deficiency . Q2.

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