Vitamin B12

What is Vitamin B12?

Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays an important role in many bodily processes. Vitamin B12 is not produced by the body, so it must be obtained through diet or supplements. Foods that are rich in vitamin B12 include meat, fish, dairy products, and fortified cereals.


Vitamin B12 is essential for the proper functioning of the nervous system and the formation of red blood cells, which help deliver oxygen to the brain. It plays a key role in the production of myelin, a fatty substance that surrounds and protects nerve cells. Myelin helps to speed up the transmission of nerve impulses and allows for efficient communication between nerve cells.

Studies have suggested that vitamin B12 may help improve cognitive function, particularly in older adults. One mechanism by which vitamin B12 may improve brain function is by reducing levels of homocysteine, an amino acid that can build up in the blood when vitamin B12 levels are low. High levels of homocysteine have been linked to an increased risk of cognitive decline and Alzheimer's disease.

Some people may be at risk of vitamin B12 deficiency, particularly vegetarians and vegans who do not consume animal products, as well as people with certain digestive disorders that affect nutrient absorption. Symptoms of vitamin B12 deficiency can include fatigue, weakness, numbness or tingling in the hands and feet, and difficulty with balance and coordination.

Vitamin B12 deficiency can lead to a range of neurological symptoms, including memory loss, confusion, and depression. In severe cases, it can cause nerve damage and even paralysis. For this reason, it is important to ensure that you are getting enough vitamin B12 through your diet or supplements.

Supplements of vitamin B12 are available in various forms, including tablets, capsules, gummies and injections. It is important to speak with a healthcare professional before starting any new supplement regimen.

Some potential health benefits of vitamin B12 include:

Improved cognitive function: Vitamin B12 is essential for the proper functioning of the nervous system and the formation of red blood cells, which help deliver oxygen to the brain. Some research suggests that vitamin B12 supplementation may help improve cognitive function, particularly in older adults.

Increased energy: Vitamin B12 is involved in the production of red blood cells, which help transport oxygen throughout the body. Some people may experience increased energy levels after taking vitamin B12 supplements.
Improved mood: Some studies have suggested that vitamin B12 may have mood-enhancing effects, particularly in people with depression and anxiety.

Reduced risk of certain health conditions: Vitamin B12 plays a role in DNA synthesis and the proper functioning of the nervous system, and some research has linked low levels of vitamin B12 to an increased risk of certain health conditions, including heart disease, Alzheimer's disease, and osteoporosis.

Improved skin health: Some research suggests that vitamin B12 may play a role in maintaining healthy skin, and that deficiency may be associated with skin problems such as acne, eczema, and dermatitis.

While some studies have suggested that vitamin B12 may have these health benefits, more research is needed to fully understand its effects on the body. Additionally, it is always recommended to speak with a healthcare professional before starting any new supplement regimen.