In the autumn-winter period, many people begin to prescribe vitamins to themselves to support the body in the fight against seasonal ailments. One of the most popular vitamins at this time is B12. But is it possible to drink it without a doctor's prescription, and in what cases is it really necessary? Let's figure it out.
Why do people 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 the repair of body tissues. A deficiency of this vitamin can manifest itself in the form of weakness, constant fatigue and a tendency to frequent illnesses. In extreme cases, anemia can occur, but this is rare.
How to take vitamin B12 tablets: rules
If you have a vitamin B12 deficiency, then according to the doctor's recommendation, the dosage may be 1 mg per day. For prevention, this dose will be lower - 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 had stomach surgery or had B12 deficiency 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 starting to take it.
Who should not take vitamin B12?
People with atrophic gastritis usually cannot take vitamin B12 in tablets, as their bodies cannot absorb it in this form. In this case, the doctor prescribes injections, which allows you to bypass the problem with absorption. It is worth noting separately people over 55-60 years old or those who have had stomach surgery - they often need lifelong administration of vitamin B12, although not daily.
Is it possible to have a vitamin B12 surplus?
If you are wondering if you can have a vitamin B12 deficiency, it is important to note that this vitamin is water-soluble and does not accumulate in the body like some other vitamins. However, there is an exception - vitamin B12 can partially accumulate in the liver if consumed in excess. However, do not worry: most of the excess will still be excreted from the body through urine.
High levels of vitamin B12 in tests can also be evidence of serious diseases, such as leukemia, so it is very important to pay close 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.
