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Posts Tagged ‘oral supplementation’

Effects Of Vitamin B12

Monday, January 15th, 2007

The Importance Of Vitamin B12

The amount of vitamin B12 required by the human body is relatively low, but the function it performs can not be ignored. The two most significant functions of vitamin B12 are cell division and the formation of red blood cells. The absorption of vitamin B12 within the body is a complicated process because it involves the release of some intrinsic stomach liquids, including stomach acids. Vitamin B12 is found naturally in many plant and animal sources. However, neither plants nor animals can directly synthesize this vitamin. Certain bacterium is capable of producing vitamin B12, and later adds them to plants. Animals become a source of vitamin B12 after they eat those plants.

Side Effects Of Vitamin B12

Scientific studies have found that vitamin B12 has very low potential for toxicity. This means that even if the vitamin is taken in excessive amounts it can not cause adverse effects. Even in high doses, oral vitamin B12 is well tolerated by the body. Very rarely are there reports of hypersensitive reactions such as urticaria, rash and pruritis, and these occur only in patients receiving parenteral vitamin B12. Those patients who experience hypersensitive reactions from parenteral supplementation may also have the same reaction from oral supplementation. It is advised that patients who are allergic to cobalamin or cobalt should not take vitamin B12.


Monday, January 15th, 2007

Supplementation of Vitamin B12

Oral supplementation of vitamin B12 is safe and inexpensive. The problem with oral supplementation of vitamin B12 is its complex absorption process within the body. This is mainly due to the fact that vitamin B12 must be converted to methylcobalamin or adenosylcobalamin in order to be absorbed by the body. With oral supplements the actual absorption of vitamin B12 is often a lower dosage than needed. In case of a deficiency a daily dosage of 2000 micrograms for at least a month is recommended, which later on can be lowered to 1000 micrograms. Many physicians prefer supplementation through injections. Vitamin B12 injections are required to maintain adequate levels of this vitamin in the elderly and in those patients who are diagnosed with a deficiency.

About Vitamin B12 Injections

There is no scientific evidence to support the fact that injections are more effective than oral supplementation. However, injections are only administered when there is a problem with oral supplementation or there is no other effective means available. Typically, vitamin B12 injections are administered to those suffering from diseases caused by a deficiency of the vitamin, such as various types of anemia. The frequency of the injections given to a patient depends upon the type and the severity of the disease. In many cases bruising and soreness caused by vitamin B12 injections are reported. The treatment for vitamin B12 deficiency by intramuscular injection is usually up to 30 mcg daily for 5 to 10 days.

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