30/06/2022
Do we need vitamins?
Today I replenished my supply of vitamins and minerals, and I decided that this is a great opportunity to start a series of short posts on this topic. In addition, now is spring, and this is the period when most of us do not have enough vitamins.
Our body's need for vitamins has been proven for a very long time. To determine the need for vitamins, doctors studied psychophysiological data and indicators of well-being (fatigue, performance, etc.). In children, even such indicators as learning ability were checked. In all groups, with the normal intake of essential vitamins in the body, all indicators improve, from immunity to cognitive abilities.
Contrary to the stereotype, beriberi, that is, the complete depletion of vitamin reserves, does not happen in ordinary life. There is hypovitaminosis - a decrease in vitamin supply. Seasonality is observed here for vitamin C, folic acid and carotenoids. Their deficiency intensifies after winter. As for other vitamins (especially group B), many people do not have enough of them all year round.
For example, in California, they once conducted a study and found that a small percentage of Californians have a vitamin D deficiency, to say nothing of our latitudes.
So, we need vitamins. But can they be obtained only from food?
As practice shows, this is almost impossible. If you can still get vitamin C more or less comfortably from fruits and vegetables, then vitamins B and D are found mainly in animal products - dairy, meat, poultry and cereal products.
So much to eat to cover all the needs of the body is unrealistic.
Could there be an excess of vitamins?
Hypervitaminosis is possible only in relation to four fat-soluble vitamins: A, D, E and K. But their overdose is also possible only if the prophylactic dose is exceeded by tens or even hundreds of times. In all other cases, "extra" water-soluble vitamins are freely excreted from the body along with urine, without causing discomfort and side effects.
In short, let's take vitamin complexes - a necessity for a modern person, especially for someone who actively trains. I hope you have no doubts about this, and if you still have, then the following posts will dispel them, because. I plan to open this topic and talk about how the lack of individual trace elements affects our lives - why we are lethargic, why we do not get enough sleep, do not recover, and cannot concentrate, etc.