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  1. Vitamin B-12 - Mayo Clinic

    Jun 28, 2024 · Vitamin B-12 deficiency is associated with dementia and low cognitive function, but it's not clear whether vitamin B-12 supplements might help prevent or treat dementia. Athletic …

  2. VITAMIN B12 - Uses, Side Effects, and More - WebMD

    Vitamin B12 is an essential vitamin found in foods such as meat, fish, and dairy. It can also be made in a lab and is often taken with other B vitamins. Vitamin B12 is required for the function ...

  3. 9 Best Vitamin B12 Supplements - Healthline

    Apr 8, 2025 · Vitamin B12 is a commonly deficient vitamin in adults. Taking B12 supplements can help regulate your body and its chemistry. Read on as we break down the importance of B12, …

  4. Vitamin B12 has not been shown to cause any harm, even at high doses. Does vitamin B12 interact with medications or other dietary supplements? Yes. Vitamin B12 supplements can …

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