However, research does not currently support the claim that vitamin B12 reduces this risk
A vitamin B12 deficiency can develop slowly and symptoms may include: Persistent tiredness or low energy Shortness of breath Pale skin Pins and needles Memory or concentration difficulties If left untreated, deficiency can lead to more serious neurological complications
These are: Older people Vitamin B12 deficiency is more common in older people, affecting around 1 in 20 aged from 65-74 and 1 in 10 over the age of 75
Physical examination may reveal pallor, glossitis, neurological signs such as reduced vibration sense or proprioception, and in advanced cases, ataxia or cognitive impairment
Our aim is to get Vitamin B12 levels right while avoiding side effects
doi:10.1136/jnnp.2007.133025