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  1. Vitamin D toxicity: What if you get too much? - Mayo Clinic

    Feb 20, 2025 · Vitamin D toxicity is a rare condition that happens when too much vitamin D is in the body. The condition can have serious effects on health. Another name for it is …

  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 …

  3. Vitamin D deficiency - Mayo Clinic

    May 10, 2025 · This mainly happens if you take supplements. Studies haven't shown that high levels of vitamin D help health more. In fact, too much vitamin D has been linked to health …

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

    Feb 26, 2025 · Research has shown that maintaining enough vitamin D in the body may lower the risk of multiple sclerosis (MS). Several studies have shown that people who get more sun …

  5. 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 …

  6. Vitamin D for babies: Are supplements needed? - Mayo Clinic

    May 14, 2024 · Vitamin D supplementation depends on whether you breastfeed your baby or how much formula with vitamin D your baby drinks. These are the guidelines from the American …

  7. Calcium and calcium supplements: Achieving the right balance

    Nov 1, 2022 · Considering calcium supplements? First figure out how much calcium you need. Then weigh the pros and cons of supplements.

  8. Vitamin B-6 - Mayo Clinic

    Aug 13, 2025 · Understand when a vitamin B-6 deficiency might occur and learn the risks of taking too much of this vitamin supplement.

  9. Vitamin B-12 - Mayo Clinic

    Aug 13, 2025 · Vitamin B-12 is a vitamin the body uses to make and support healthy nerve cells. It's also used to make healthy red blood cells and the genetic material inside cells called DNA. …

  10. Calcium supplements: When should they be taken? - Mayo Clinic

    Oct 10, 2025 · For people who take calcium supplements and multivitamins, it's best to take them at different times of day. Calcium can affect how the body takes in the nutrients iron, zinc and …