About Vitamin B12-deficiency anaemia
As well as causing symptoms of anaemia, a lack of vitamin B12 can also affect the nerves, and so affect the senses of touch and pain.
In adults, blood cells are made by red bone marrow, which is found inside the centre of the hips, ribs, breastbone and backbone, plus the ends of long bones such as the thigh. Red blood cells live for around 120 days before they are broken down and replaced, as part of a normal renewal process.
Vitamin B12 is a crucial ingredient in DNA, the chemical that carries genetic information for new cells. It's found in meat and animal products but not in vegetables. You need vitamin B12 to make red blood cells and for maintaining healthy nerves.
The symptoms of anaemia include:
- feeling very tired
- feeling very cold all the time
- a rapid, weak pulse
As well as the symptoms of anaemia, vitamin B12 deficiency may cause neurological symptoms due to inflammation of the nerves (neuritis). This is called vitamin B12 neuropathy. It affects movement and sensation, especially in the legs, and causes numbness or pins and needles. It can also cause confusion, depression, poor concentration and forgetfulness.
Source : http://hcd2.bupa.co.uk/fact_sheets/h...aemia_b12.html
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