Vitamin B12 Lacking Supportive Evidence
MS (multiple sclerosis)
Cancer affecting the cervix. It is unknown whether vitamin B12 reduces cervical cancer risk.
Having asthma
Hearing impairment
Causing cancer
Sickle cell anemia
Getting older
Atherosclerosis (arterial rigidity).
A severe infection of the gums (periodontitis).
Alzheimer’s illness. Few early studies suggest that increasing vitamin B12 intake does not prevent or treat Alzheimer’s disease.
Weakness due to fatigue. There is limited evidence that twice-weekly injections of 5 mg of vitamin B12 under the brand name hydroxocobalamin can enhance normal well-being and happiness in individuals with fatigue.
The use of anti-cancer drugs causes neuronal damage in the hands and ankles. Early research indicates that consuming B vitamins containing vitamin B12 in conjunction with cancer medications does not alleviate neuropathic pain caused by cancer medications.
The disease known as Lou Gehrig’s disease (ALS or amyotrophic lateral sclerosis). It is unknown whether a high-dose vitamin B12 injection slows the health decline of ALS patients.
Long-term inflammation of the digestive tract (Inflammatory Bowel Disease or IBD).
Diabetes-related neuropathy (diabetic neuropathy) is the cause of discomfort in diabetics. Initial evidence suggests that vitamin B12 can help reduce pain in patients with this condition.
Infant growth and development. It does not appear that consuming vitamin B12 during pregnancy improves cognitive function or brain development in neonates. Providing vitamin B12 to neonates appears to be ineffective as well.
Atopic dermatitis (eczema). Early research indicates that applying a vitamin B12 cream (Regividerm) to the epidermis twice a day helps treat eczema.
An intervention (angioplasty) designed to unblock or dilate a constricted blood vessel.
Having diarrhea. Early research suggests that doubling the recommended daily allowance of vitamin B12 with or without folic acid does not reduce the risk of gastroenteritis in children.
Diabetes mellitus. Initial evidence suggests that vitamin B12 may improve blood sugar control in diabetics.
Infection of the respiratory tract. Early research indicates that double the recommended daily allowance of vitamin B12, with or without folic acid, does not reduce the risk of lower airway infections in children.
Increased levels of vitamin B12 in the blood are associated with a reduced risk of developing dementia, according to preliminary research on individuals with Parkinson’s disease. However, it is unknown whether vitamin B12 supplements reduce the risk of dementia.
The condition of having ringing in the hearing (tinnitus). Initial research indicates that vitamin B12 injections may help improve tinnitus in individuals with low vitamin B12 levels. However, it does not appear to benefit those with normal vitamin B12 levels.
Rectal cancer and colon cancer. Few population researchers recommend that those who consume more vitamin B12 have a lower risk of developing colon or rectal cancer. However, preliminary research indicates that consuming vitamin B12 with folic acid and vitamin B6 every day for up to 7.4 years does not reduce the risk of colorectal cancer in women.
Peripheral neuropathy is a disorder of the nerves in the feet and extremities.
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