They add: “It’s important for vitamin B12 or folate deficiency anaemia to be diagnosed and treated as soon as possible.
“Although many of the symptoms improve with treatment, some problems caused by the condition can be irreversible if left untreated.”
The longer you leave vitamin B12 deficiency untreated, the more likely you will suffer from “permanent damage”.
Fortunately, the condition can be picked up solely based on your symptoms or during a simple blood test.