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Vitamin B12 - what does it do?
Vitamin B12 (cobalamin) - is an essential vitamin, but one we can’t produce
What does it do?
- Supports normal function of your nerve cells
- Needed for red blood cell formation and may help prevent anaemia
- DNA synthesis
- During pregnancy – may help the prevention of brain and spinal cord birth defects.
- Plays a vital role in good bone health
- May improve mood and depression as it is needed for the production of serotonin, our happy mood neurotransmitter!
- May contribute to good brain health by preventing the loss of neurons. Deficiency has been associated with memory loss in older adults
- Gives you an energy boost - involved in energy production in your body.
What are the symptoms of B12 deficiency?
Anaemia which may manifest itself
- fatigue
- lethargy
- breathlessness
- feeling faint
- headaches
- pale skin
- palpitations
- tinnitus
Other Symptoms of vitamin B12 deficiency
- Weakness, tiredness
- Sore and red tongue
- Mouth ulcers
- Nerve problems - pins and needles, muscle weakness
- Disturbed vision
- Irritability
- Depression
- Mental problems like depression, memory loss, or behavioral changes
Who Is at Risk of Vitamin B12 Deficiency?
By not eating the foods that supply it or you are unable to absorb it.
B12 testing can be done by your doctor or by using a private lab.
Those at risk of vitamin B12 deficiency include:
- Older adults as they mat have less stomach acid which is needed to absorb B12
- Gastrointestinal disorders - e.g Crohn’s disease or coeliac disease
- Alcohol misuse/heavy drinking
- Vegetarians and Vegans
- Some medication may deplete levels, eg Metformin and PPIs for heartburn
What are the sources?
- Organ meat e.g. liver
- Meat
- Eggs
- Shellfish
- Seaweed
- Fortified foods e.g cereals