In the autumn-winter period, many people begin to self-prescribe vitamins to support the body in the fight against seasonal ailments. One of the most popular vitamins at this time is B12. But can you drink it without a doctor's prescription, and in what cases is it really necessary? Let's figure it out.
Why does a person need vitamin B12?
Vitamin B12 plays an important role in the production of nucleic acids (DNA and RNA), which contain genetic information. This means that it is necessary for normal cell division and restoration of body tissues. Deficiency of this vitamin can manifest itself in the form of weakness, constant fatigue and susceptibility to frequent diseases. In extreme cases, anemia may occur, but this is rare.
How to drink vitamin B12 in tablets: rules
If you have a deficiency of vitamin B12, then according to the doctor's recommendation, the dosage can be 1 mg per day. For prevention, this dose will be smaller - 0.35 mg per day. Such recommendations are given by gastroenterologist and therapist Stanislav Kravchuk.
This vitamin will be especially useful for pregnant women and vegetarians, as well as for those who have undergone stomach surgery or have B12-deficient anemia.
It is also important to remember that vitamin B12 can be combined with other vitamins, but for maximum effect, it is better to consult a doctor before taking it.
Who should not take vitamin B12
People with atrophic gastritis usually cannot drink vitamin B12 in tablets, because their body cannot absorb it in this form. In this case, the doctor prescribes injections, which allows to bypass the problem with assimilation. People over 55-60 years of age or those who have undergone stomach surgery should be noted separately - they often need lifelong administration of vitamin B12, although not every day.
Can there be a surplus of vitamin B12?
If you have a question about the possibility of a surplus of vitamin B12, it is worth noting that this vitamin is water-soluble and does not accumulate in the body, as it happens with some other vitamins. However, there is an exception — vitamin B12 can partially accumulate in the liver if it is consumed excessively. However, do not worry: most of the excess will still be excreted from the body through urine.
A high level of vitamin B12 in tests can also be an indication of serious diseases, such as leukemia, so it is very important to pay attention to this indicator in the body.
In general, vitamin B12 is an important element for the normal functioning of the body, but it should only be taken as directed by a doctor to avoid unnecessary risks.
