Vitamin B12 is a water-soluble nutrient, which is also called cyanocobalamin. Since we cannot manufacture it in our bodies, we need to get it from our diet. Although vitamin B12 is found in animal products, it is also found in several processed foods as well as nutritional supplements. The supplements are available in pill form, liquid form, transdermal patches, nasal sprays, lozenges, and injections. Vitamin B12 is found in animal products such as meat, shellfish, milk, cheese, and eggs. It is unlikely that people who eat animal products will develop vitamin B12 deficiency.
 

Deficiency of vitamin B12 can lead to megaloblastic anemia, fatigue, weakness, loss of appetite, weight loss, constipation, vision problems, and can also affect the nervous system. Supplements must be taken by strict vegetarians, vegans, heavy drinkers, smokers, pregnant and breastfeeding women, and elderly people to avoid this deficiency. Vitamin B12 is responsible for several critical body functions.

Vitamin B12 protects the brain from atrophy, which is associated with Alzheimer’s disease and impaired cognitive function. It is also associated with emotional stability, the reduction of depression and stress, and increased concentration.

Vitamin B12 is essential in the production of red blood cells, which carry oxygen into the tissue. It is therefore an important ingredient in protecting the body from developing pernicious anemia, which can become life-threatening if left untreated.

A healthy level of vitamin B12 in our body protects our body against cancer of the breast, colon, prostrate, and lung.

Vitamin B12 is one of the important factors that help the body produce DNA.

Vitamin B12 reduces levels of homocysteine in the body, which can cause heart disease. It helps by curbing and improving unhealthy cholesterol levels and has protective properties against stroke and high blood pressure. Hence, its deficiency must be addressed.
 

Vitamin B12 and its supplements are also used to control diabetes, sleep disorders, osteoporosis, inflammatory bowel disease, asthma, skin allergies, and skin infections.