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In those patients neurological symptoms and damage are the key to diagnosis

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When you receive your test in the mail, collect a blood sample (just a finger prick!) and mail it to Hones CLIA and CAP-accredited lab partner

However, certain populations are at higher risk of deficiency: Adults over 50 (reduced absorption capacity) Individuals following vegan or strict vegetarian diets Those with gastrointestinal conditions such as Crohns disease or celiac disease Individuals taking long-term acid-reducing medications (PPIs, H blockers) When oral supplementation is insufficient or absorption is compromised, vitamin B12 shots deliver the nutrient directly into the bloodstream, bypassing the digestive system entirely