Are there any side effects of excess of vitamin B12 levels in the body?

As such there are no upper tolerable dietary levels (UL) mentioned for the consumption of B12. However, it would be a safe practise to have some control over vitamin levels. High amounts of Vitamin B12 do not have any observed potential toxic effects on the body.

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Keywords: Toxic effects Side Effects Upper Tolerable Intake Levels (UL)

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