What causes low B12?
There are two primary causes of B12 deficiency – pernicious anaemia and diet.
Pernicious anaemia is the most common cause of vitamin B12 deficiency in the UK. It is an autoimmune condition, meaning your immune system attacks the cells in your stomach that produce the intrinsic factor; a protein your body uses to absorb vitamin B12.
Some people can develop a vitamin B12 deficiency as a result of not getting enough vitamin B12 from their diet.
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Those adhering strictly to a vegan or vegetarian diet are at a greater risk of B12 deficiency because B12 is naturally found in meat, fish and dairy products.
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Source: Daily Express
