Vitamin B12 is also known as cobalamin. It is a water soluble vitamin that is essential for proper functioning of the brain, nervous system and formation of blood. It is one of eight B vitamins that are found in the body. It is also needed to make DNA which is genetic material found in all cells and it is also needed for energy production.
Vitamin B12 is naturally found in animal foods such as milk, fish, eggs, meat and poultry. Breakfast cereals are often fortified with vitamin B12 which is a good source, especially for vegetarians. Vegetarians have been known to have vitamin B12 deficiency who are not getting it from another source other than animals.
Vitamins And Health
Symptoms with vitamin B12 deficiency in vegetarians may take years to develop because it takes a while for vitamin B12 levels to become depleted. These individuals should consider taking a vitamin B12 supplement. Most people get enough Vitamin B12 in their diet, deficiency is most likely to occur as a result of a decreased ability by the body to absorb it from food. Most of these people have an underlying stomach or intestinal disorder that is preventing the absorption of vitamin B12.
Common symptoms associated with vitamin B12 deficiency include fatigue, nausea, weakness, weight loss, loss of appetite, flatulence or gas and constipation. Neurological problems may also occur such as numbness or tingling in the hands and feet. Loss of balance, confusion or memory loss may also occur. It is important to see a healthcare professional if you are experiencing these symptoms.
Pernicious anemia is a condition that can develop with the absence of vitamin B12. This occurs when there is a decreased amount of intrinsic factor in the stomach. Vitamin B12 binds with intrinsic factor to help it be properly absorbed by the body. Vitamin B12 injections are often recommended for these individuals.
Other individuals with stomach and intestinal problems may not absorb enough vitamin B12 from food to get the amount needed by the body. Examples of these diseases are Sprue and celiac disease which are caused by an intolerance to protein in wheat products. Inflammation in the stomach from these diseases may result in malabsorption of vitamin B12. The build up of bacteria in the stomach and intestines can also decrease absorption of vitamin B12.
Many adults over the age of 50 years have conditions which prevent them from properly absorbing Vitamin B12. This may include bacterial growth in the stomach or inflammation of the stomach. These conditions limit the secretions of stomach acid which are needed to separate vitamin B12 from protein to be properly absorbed. Adults 50 years and older are often recommended to take dietary supplements with Vitamin B12 or eating fortified foods.
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Nov 13, 2011 18:04:32
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