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This deficiency can cause health issues such as anemia, fatigue, and a lack of focus
Individuals most likely to benefit include: Those with pernicious anemia People with gastrointestinal disorders (e.g., Crohns disease, celiac disease, chronic gastritis) Patients following bariatric (weight loss) surgery Older adults with absorption difficulties Strict vegetarians or vegans at risk for deficiency People taking medications that can decrease vitamin B12 levels Laboratory testing usually confirms B12 deficiency before starting injections
Research Snapshot: Current State of Research This section summarizes indexed research without turning literature observations into product-use claims
However, it does mean that the situation is nuanced and complex
Weill Cornell Medicine
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