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Gray market suppliers were selling it online, and most of the claims surrounding it rely on anecdotes, influencer endorsements, and marketing
How much vitamin B12 we absorb depends on a protein in our stomach called intrinsic factor
Verified owner IgorVerified Purchase Great service, reasonable price
After the initial six weeks, the injections can be tapered down to being given less frequently, often once every one to two months
NHS approach to B12 deficiency: NICE Clinical Knowledge Summaries recommend investigating B12 deficiency in patients presenting with macrocytic anaemia, unexplained neurological symptoms, or risk factors including pernicious anaemia, gastrectomy, malabsorption disorders, metformin use, proton pump inhibitors, or nitrous oxide exposure
The clinical evidence is compelling
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