To determine the content of vitamins in the different foods, use different tables with similar data given on the respective sites. An example of such an online resource would be the following: http://immunologia.ru/2-vitamin.html the Lack of vitamins, as is known, leads to various negative consequences for the body, but can cause pathological changes in tissues and organs and excess. Therefore, it is important to make your daily requirement for these substances correspond to the number of their receipt.
If you have any desire or need to determine the quantity of vitamins in the body, pass the appropriate laboratory tests. In addition to standard biochemical blood analysis, including the refinement of various parameters relating to protein, lipid and other types of metabolism, modern medicine is determining the content of vitamins in the blood, as well as the analysis of the spectrum of macro - and microelements in biological substrates.
You can donate blood for a comprehensive analysis, check the levels of eight essential vitamins (A, D, E, K, B1, B5, B6). In the course of modern laboratory tests can also determine the blood concentration of certain groups fat-soluble (A, D, E, K) and water soluble (B1, B5, B6, C) vitamins, lack of which may indicate any disease.
In addition, some medical centers have the opportunity to make "a microelement portrait" of the person by analysis of the structure of hair and other biological material, for example, urine. Complete trace element analysis of hair, urine. It will show whether you eat enough in your diet is essential to the body nutrients; whether to operate your internal organs, regulates the processes of consumption and excretion of these substances; how safe is the environment of your life.
Remember that heat processing of foods destroys most of the vitamins contained in them. So vegetables and fruits should preferably be consumed fresh.