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b12 deficiency effects:
Vitamin B12 is a water-soluble B vitamin. At the centre of the molecule of vitamin B12 is an atom of cobalt and hence the name cobalamin. The compounds with vitamin B₁₂ activity are collectively called “cobalamins”. The cyanocobalamin form is used in supplements and is found in trace amounts in food (1).b12 deficiency effects the proper functioning of body.
Are b12 deficiency effects dangerous?
Unlike other B vitamins, vitamin b12 deficiency effects losses from the body are small and that small amount is through stools. Most of the B12 vitamin released into the digestive tract is again reabsorbed. It was found that only 0.1 % of vitamin B12 is lost from our body stores every day (2).
That is the reason why b12 deficiency effects are not seen immediately even though the diet is lacking in vitamin B12. If our body stores of vitamin B12 are good it could be years before the deficiency signs are seen even on a B12 deficient diet.
But if deficiency does set it, b12 deficiency effects can have some serious consequences especially if it is not detected early and corrected.
The deficiency of vitamin b12 deficiency effects in developing pernicious anaemia (macrocytic megaloblastic anaemia). The main reason for this type of anaemia is the involvement of vitamin B12 in folate metabolism and synthesis of DNA (2).
In pernicious anaemia the red blood cells (RBCs) under microscope look large and immature. The other reason for pernicious anaemia is the lack of intrinsic factor in the gastric juice which is essential for absorption of vitamin B12 (3).
The b12 deficiency effects include:
Pernicious anaemia symptoms (2, 3, 4)
Affects nervous system
Vitamin b12 deficiency effects myelin sheath of the nerve cells. This leads to problems with nervous system (2).
Because of nervous system being affected following symptoms may be seen
Neurological symptoms are seen at a later stage of deficiency and usually develop after the onset of anaemia (5).
Because of balance issue, b12 deficiency effects in the risk of falling and fracture of bones also increases.
Elevated levels of homocysteine, a sulphur containing amino acid which is derived from methionine is an independent risk factor for cardiovascular disease, one of the many b12 deficiency effects. Vitamin B12 along with folic acid and vitamin B₆ is involved in homocysteine metabolism.
In a study it was observed that hyper-homocysteinemia was common enough and was due to low vitamin B 12 concentration as they did not find any case of subnormal serum folic acid level (6).
Vitamin b12 deficiency effects the homocysteine levels increase in the blood. It is very important for our heart health to take recommended dietary allowance of vitamin B12 (4).
Vitamin b12 deficiency effects every age
Vitamin b12 deficiency effects have been linked to age-related vision problems and risk of frailty. Both are major risk factors for disability in the elderly. For pregnant women also vitamin B12 is very important as low levels of vitamin B12 have been linked to higher risk of neural tube defect in babies (1).
Severe cobalamin deficiency early in life may affect psychoeducational functioning through adolescence (7).
Some of the vitamin b12 deficiency effects are serious in nature and can be dangerous if not corrected.
Final word on b12 deficiency effects
The signs and symptoms of vitamin B12 usually appear before there is any permanent damage to the nervous system. Especially anaemia is seen much before any serious damage is done. Catch vitamin b12 deficiency effects in early stages and avert any substantial damage that can occur.
5 Health Benefits Of Saunf Milk