Deficiency symptoms of vitamin B12

How do we know we do not have cobalamin or vitamin B12


Symptoms of lack of vitamin B12

Initially it was considered that the only function of vitamin B12 was the correct formation of red blood cells and avoid anemia.

It is now known that vitamin B12 in many other vital functions: This vitamin is necessary so that the myelin sheaths of the neurons are renewed. It also acts, along with folic acid (vitamin B9), in the proper functioning of the cardiovascular system.

Megaloblastic anemia due to B12 deficit


Does an egg-lacto-vegetarian diet provide enough B12?

Megaloblastic anemia: Since blood cells have a short life, red blood cells and hematocrit are the parameters most affected by B12 deficiency. For this reason it is explained that vitamin B12 deficiency produces megaloblastic anemia and low hematocrit.

Anemia can also occur due to lack of protein in the diet, due to lack of iron or folic acid (vitamin B9).

As symptoms that may indicate anemia: Tiredness, pallor, hair loss, fatigue, tingling in the extremities, amenorrhea, etc.

Other problems caused by vitamin B12 deficiency or deficiency

Initially it was considered that the only function of vitamin B12 was the correct formation of red blood cells and avoid anemia. It is now known that vitamin B12 acts as a coenzyme in many vital functions of the body and its deficiency can affect other systems:

Problems in the immune system: The immune system can not form correctly due to B12 deficiency. People with B12 deficiency may be more prone to infections.

Problems of the nervous system: The lack of B12 produces neurological symptoms that affect the cognitive capacity and / or the muscular sensitivity. This is the differential characteristic of B12 deficiency and may manifest as tingling in the hands or feet, loss of reflexes, lack of concentration, etc.

Coagulation problems: When vitamin B12 deficiency is severe, thrombocytopenia and hematoma (ecchymosis) occur in the legs and buttocks. This is seen in babies with B12 deficiency by vegetarian mothers (who are not supplemented).

Symptoms of vitamin B12 deficiency

B12 missing consequence summary sheet. Deficiency in this vitamin has serious complications such as anemia.

Missing B12 symptoms in vegetarian babies and children

In newborns and children the lack of B12 can have serious consequences, mainly due to the high level of growth and development that they present in these vital stages. Possible neurological sequelae may occur.

Problemas de cansancio por defícit de cobalamina

Vitamin B12 in vegetarian pregnant women. In pregnancy, vegetarian women should take vitamin B12 supplements

When vegetarian have B12 deficits?

It is estimated that all vegetarians have vitamin B12 deficiency at most from the age of 4 on a vegetarian diet.

You may have it earlier if your vitamin requirements are high or if you have absorption problems, such as intestinal and old people diseases (decreased absorption), infants of lactating vegetarian mothers, vegetarian children or pregnant women.

Many times, vitamin B12 deficiency may have no clear symptoms.

An adult vegetarian has some B12 store, which he has accumulated throughout his life. However, when subjected to a specific analytical (erythrocytes, hematocrit, vitamin B12 and levels of methylmalonic acid), usually deficiency values ​​of this vitamin appear.

How to prevent B12 failure

– A healthy diet is the best way to avoid a lack of vitamin B12 or cobalamin.

Supplement vegetarian diets: Ingestion of vitamin B12 supplements may be necessary in special circumstances when diet may not meet individual needs.

Supplement pregnant women who consume few foods of animal origin, even if they are not strictly vegetarian. Taking too few dairy products, eggs or meats may be insufficient to meet the needs of pregnancy (to be assessed by the doctor or dietitian).

Care in vegetarian babies and children: Vitamin B12 is very important for them, not only to improve circulation and prevent anemia, but also involved in the multiplication of cells (huge for the growth of the fetus, baby, Children and young people), and in the formation of the nervous system.

* Related information:

Diagnostic of vitamin B12 deficiency

Vitamin B12 supplements

Vitamin B12 supplements for vegetarians

Vitamin B12 analogues

How to take vitamin b12 supplements

Deficiency of vitamin b12 in babies or vegetarian children

Vitamin B12 during pregnancy

Does the body store vitamin b12?

punto rojoMore information on vitamin b12.

Written by Editorial Botanical-online team in charge of content writing

19 March, 2019

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