Having a deficiency of any vitamin can cause a host of problems with varying degrees of severity. The effects of vitamin B12 deficiency are widespread and have a major influence on the neutron functions. A major deficiency to B12 can almost lead a person to psychiatric symptoms as serious as hallucinations. Anxiety, panic attacks and depression have also been named as a major deficiency to Vitamin B12. When it comes to one’s mental health – it is imperative to keep as healthy as possible and therefore up B12 vitamin intake. Most people can get all their vitamin B12 they need purely from their diet, however vegans may need to take a daily 1.5 microgram supplement.
A US National library of Medicine National Institutes of Health conducted a study to determine the lack of Vitamin B12 and mental health.
It concluded: “Vitamin B12 deficiency rises with age, but only about 10 percent of those with low vitamin B12 also have low folate levels.
Therefore, given the prevalence of both vitamin B12 deficiency and mental disability among the elderly, supplementation with vitamin B12 might reduce the risk of age-associated mental disability or improve the quality of life among those with dementia, but more studies are needed to determine how biologically important vitamin B12 might be.”
Cognitive decline combined with psychosis and seizures is a rare side effect of B12 deficiency however in a BMJ case report by professor J Bernardo Barahona-Corrêa an incident was noted of an unnamed 61-year old widower who had suffered reversible dementia due to a Vitamin B12 deficiency.
The woman was found in Cape Verde walking the streets naked and hallucinating about dead relatives and acting very paranoid, accusing her family of trying to poison her.
She was taken into hospital for tests and with everything coming back clear, she was eventually diagnosed with a B12 deficiency and also severe hyperhomocysteinemia.
Other symptoms of B12 deficiency include:
- Skin looking pale or have a yellow tinge
- A painful tongue
- Mouth ulcers
- Pins and needles
- Disturbed vision
If the deficiency is left untreated it could cause nervous system problems, infertility, heart conditions, pregnancy complications and birth defects.
It can also lead to psychiatric symptoms even without anaemia and could cause irreversible neuronal damage.