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Tag: High dose b12 side effects

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Is there any danger in taking too much vitamin B12?

3 min read
According to the National Institutes of Health, vitamin B12 does not have a tolerable upper intake level due to its low toxicity. Despite this, many people wonder: is there any danger in taking too much vitamin B12? While excess amounts are typically excreted, high doses—especially via injections—can lead to potential side effects and may indicate underlying health issues.