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  1. Vitamin D deficiency - Mayo Clinic

    May 10, 2025 · 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 …

  2. Vitamin D - Mayo Clinic

    Mar 21, 2025 · 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 …

  3. Rickets - Symptoms & causes - Mayo Clinic

    Apr 25, 2025 · Causes Your child's body needs vitamin D to absorb calcium and phosphorus from food. Rickets can occur if your child's body doesn't get enough vitamin D or has problems using vitamin D …

  4. Vitamin deficiency anemia - Symptoms & causes - Mayo Clinic

    Sep 16, 2025 · Causes Vitamin deficiency anemia can happen from not eating enough foods that have vitamin B-12 and folate, or from the body having trouble taking in and using these vitamins.

  5. Vitamin D and MS: Is there any connection? - Mayo Clinic

    Feb 26, 2025 · 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 …

  6. Vitamin D deficiency: Can it cause high blood pressure?

    Feb 26, 2025 · A vitamin D deficiency means you don't have enough vitamin D in your body. Too little of vitamin D makes bones weak. But the link between vitamin D and blood pressure isn't clear. Vitamin …

  7. Seasonal affective disorder (SAD) - Symptoms & causes - Mayo Clinic

    Dec 14, 2021 · 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 …

  8. Iron deficiency anemia - Symptoms & causes - Mayo Clinic

    Sep 20, 2025 · If you or your child gets symptoms that might be from iron deficiency anemia, see your healthcare professional. Don't try to diagnose or treat it on your own. And talk to a healthcare …

  9. Osteoporosis - Symptoms and causes - Mayo Clinic

    Dec 17, 2025 · 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 …

  10. Vitamin deficiency anemia - Diagnosis & treatment - Mayo Clinic

    Sep 16, 2025 · Treatment for vitamin deficiency anemia involves taking the vitamin you don't have enough of. For pernicious anemia, you most often get vitamin B-12 in a shot. You may need to keep …