Vitamin D deficiency can cause loss of bone density, osteoporosis, and broken bones. Vitamin D is sometimes called the sunshine vitamin because your body makes it from cholesterol when your skin

Clinical Case 5.4 had a serum 25-hydroxy vitamin D concentration of 6 nmol/l (NR 20–100 nmol/l) and a diagnosis of osteomalacia (loss of bone mineralization) due to vitamin D deficiency was made. The causes of vitamin D deficiency are given in Box 5.27 and the clinical features in Box 5.28. The diagnostic question in this patient was the

Vitamin A deficiency is defined as serum retinol levels of below 28 μg/dL. Vitamin A deficiency can lead to blindness, skin disease and growth retardation in children. What causes vitamin A deficiency? Primary vitamin A deficiency is caused by prolonged dietary deprivation. Secondary vitamin A deficiency is caused by reduced absorption
A lack of vitamin D can cause serious problems, and doctors typically prescribe larger doses for 6-8 weeks to those with a diagnosed deficiency. Patients should make sure their labs are following Endocrine Society and Institute of Medicine thresholds when getting tested. Neither group recommends universal screening for a vitamin D deficiency. Many children have a vitamin D deficiency, and the problem is common in adults who are overweight, pregnant, use sunblock, or otherwise don’t get enough sun exposure. Chronic vitamin D deficiency can lead to weak bones, bone fractures, and rickets (in children), and it is the major cause of generalized bone pain and muscle pain complaints.
Vitamin D may play a role in both allergies and autoimmune skin diseases, including stopping mast cells from releasing histamine. Your doctor can test your blood for vitamin D.
The skin is unique in being not only the source of vitamin D for the body but also in being capable of responding to the active metabolite of vitamin D, 1,25 (OH) 2 D. Both 1,25 (OH) 2 D and its receptor (VDR) play essential roles in the skin.
Vitamin C normally enhances the absorption of iron in the gut, so a vitamin C deficiency can result in iron deficiency anemia. Anemia can exacerbate fatigue. In severe cases, anemia can result in dizziness, pale skin, a rapid heart rate, and shortness of breath.
Extremely high levels of vitamin D can cause kidney failure, irregular heartbeat, and even death. High levels of vitamin D are almost always caused by consuming excessive amounts of vitamin D from dietary supplements. You cannot get too much vitamin D from sunshine because your skin limits the amount of vitamin D it makes.
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    • does vitamin d deficiency cause skin problems