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It is important to distinguish between excessive supplementation and pathologically elevated B12 levels, which may indicate underlying haematological disorders, liver disease, or renal impairment rather than true overdose
This step is very important for the right dose
B12 injections are typically administered directly into the muscle, known as intramuscular injection
Have gastrointestinal conditions that impair nutrient absorption (e.g., IBS, celiac disease, or Crohns)
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