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Then, we'll review your medical history, looking at things like your diet (especially if you're vegan or vegetarian), your age, any stomach or gut conditions, past surgeries, and even the medicines you take, like metformin or proton pump inhibitors, which can sometimes affect B12 levels

if they were prescribed to correct a deficiency, stopping too soon could mean it comes right back

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The post doesn't speak directly to neuropathy or early-sobriety recovery, but it does note that B vitamins are essential for nerve function and that severe deficiency can contribute to neurological problems, including Wernicke-Korsakoff syndrome