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This can lead to the development of type 2 diabetes, which has numerous long-term health consequences
It is also used to manage vitamin B12 deficiencies resulting from specific surgeries, diseases of the stomach or gut, and any other genetic disorders affecting vitamin B12 metabolism
Because the body is efficient at excreting excess B12 through urine, there is no established tolerable upper intake level (UL) for the vitamin
This is particularly relevant for patients with pernicious anaemia, where intrinsic factor deficiency prevents adequate oral absorption
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