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People following strict vegan diets or with gastrointestinal conditions that affect absorption should monitor nutrient levels regularly

If you have trouble with nutrient absorption due to the presence of intestinal inflammation, poor gut health, or a deficiency of those intrinsic factors we mentioned, then taking an oral supplement may not be that helpful

The NHS route is for people with a clinically confirmed B12 deficiency

Safety, Stability, and Handling Cyanocobalamin is highly stable and cost-effective

Several autoimmune diseases can make it harder for your body to absorb B12, including pernicious anemia

High-dose oral B12 can even help overcome mild absorption problems, as some of the vitamin is absorbed passively