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In StatPearls
Results from intrinsic factor deficiency and the resulting inability to absorb oral B12
When you have pernicious anaemia, the body attacks your healthy cells which makes it impossible for your body to absorb vitamin B12
Without adequate methylcobalamin, this entire engine grinds to a halt, leading to a cascade of cellular failures that manifest as profound fatigue and cognitive decline
In this guide, we'll walk you through how your body absorbs B12, what the real absorption numbers reveal, who tends to do better with shots versus pills, and the questions worth asking before you choose
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