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  • Vitamin D deficiency - Mayo Clinic
    And a vitamin D deficiency is a risk for people who follow an eating pattern that doesn't include foods with vitamin D or for people who have limited sun exposure Foods high in vitamin D include fatty fish, such as salmon or trout Foods with vitamin D added, called fortified, are another source of vitamin D These include milk and yogurt
  • Vitamin D - Mayo Clinic
    Overview Vitamin D is a nutrient the body needs, along with calcium, to build bones and keep them healthy The body can absorb calcium only if it has enough vitamin D Calcium is a major part of bones Vitamin D also has many other uses in the body It supports immune health and helps keep muscles and brain cells working
  • Hyperparathyroidism - Symptoms causes - Mayo Clinic
    The kidneys take vitamin D and change it into a form that the body can use If the kidneys don't work the way they should, the amount of vitamin D that the body can use may go down, and the calcium level drops Kidney disease that lasts a long time, called chronic kidney disease, is the most common cause of secondary hyperparathyroidism
  • Seasonal affective disorder (SAD) - Symptoms causes - Mayo Clinic
    Low level of vitamin D Some vitamin D is produced in the skin when it's exposed to sunlight Vitamin D can help to boost serotonin activity Less sunlight and not getting enough vitamin D from foods and other sources may result in low levels of vitamin D in the body
  • Hyperparathyroidism - Diagnosis treatment - Mayo Clinic
    Cinacalcet may be used along with prescription forms of vitamin D to treat secondary hyperparathyroidism in people who have health conditions involving the kidneys These medicines help keep a healthy balance of calcium and phosphorus in the body so that the parathyroid glands don't have to work too hard Bisphosphonates
  • Anemia - Symptoms and causes - Mayo Clinic
    To make them, the body needs iron, vitamin B-12, folate and other nutrients from foods Causes of anemia Different types of anemia have different causes They include: Iron deficiency anemia Too little iron in the body causes this most common type of anemia Bone marrow needs iron to make hemoglobin
  • Osteoporosis - Symptoms and causes - Mayo Clinic
    Vitamin D is normally made in the skin with enough sun exposure but is also found in some foods and vitamin supplements Ask your health care provider for more information about how much vitamin D you need and what to do about supplements
  • Hemoglobin test - Mayo Clinic
    A lack of certain nutrients For example, you might have low iron levels, also called an iron deficiency Or you might have low vitamin B-12 levels, also called a vitamin B-12 deficiency It's also possible to have low folate levels, called a folate deficiency Bleeding You might have heavy menstrual bleeding or bleeding from the digestive system
  • Vitamin deficiency anemia - Symptoms causes - Mayo Clinic
    Vitamin B-12 deficiency The following can cause low levels of vitamin B-12: Pernicious anemia With this condition, the body's immune system attacks cells in the stomach that make a substance called intrinsic factor Without this substance, the intestines can't take in B-12 Gastric surgeries
  • Vitamin D and MS: Is there any connection? - Mayo Clinic
    Research suggests that vitamin D has a positive effect on the immune system Experts need to better understand how vitamin D might affect MS There's also an association between sunlight exposure and the risk of MS Sunlight is the body's most efficient source of vitamin D The farther away from the equator a person lives, the higher the risk





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