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Most people get sufficient Vitamin B12 from their diet, but some people may have low levels of Vitamin B12 due to having a digestive condition or vegans that follow a plant-based diet

Testing: B12 levels in the body can be determined using a simple blood test

A Cochrane review supports the use of high-dose vitamin B 12 (1 mg and 2 mg daily) in elevating serum vitamin B 12 level and achieving haematological and neurological responses, even in patients with PA or with ileal resection.58 The recommendation for oral replacement is 1 mg daily for a month, and then 125 to 250 g daily as maintenance dose for patients with dietary insufficiency and food-cobalamin malabsorption, while for PA the maintenance dose is 1 mg daily.29 Vitamin B 12 does not have side-effects even when prescribed in large doses.59 However, hypokalaemia, resulting from uptake of circulating potassium by newly growing and dividing haematopoietic cells, can be severe or sometimes life-threatening

The steps involved are simple and will hardly take 5-10 minutes

But some people need to take vitamin B12 supplements to prevent or treat a deficiency