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The gap between those two worlds is the entire point of this guide
it's about understanding the why
Practical issues
The two core mechanism papers were retracted in April 2025 (PMID 22129598, retraction notice PMID 40312092
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Going in I was hesitant about the process and all of it in general
Serious Vitamin B12 deficiency can result in decreased number of red blood cells (anemia), stomach or intestinal diseases and permanent nerve damage
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