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Yes, you can take Vitamin B12 safely alongside other common supplements such as vitamin D, magnesium, or omega3 fatty acids
Medically Reviewed on 1/14/2026 Am J Clin Nutr
If your test results show higher than normal levels, your doctor will probably order more tests to check your liver health
For example, while many people with Alzheimers disease are found to have low vitamin B12 levels, there is no improvement in cognitive function after supplementation with high doses of vitamin B12
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