Which vitamin is necessary for the body in what amount? Which vitamins exist in which foods? Is that necessary to take vitamins in addition to the natural foods? Can the vitamins be harmful? Dr. Murat Görgülü explained what you wonder about vitamins.
Vitamins are the organic compounds with excessive biological effect necessary for the proper operation of the cells and organs in human body, for realization of the metabolic events and which needs to be taken through the foods and drinks and which do not include calorie and nutrition value. The vitamins are divided into two groups mainly. These are vitamins A,D,E,K which melts in fats and B group vitamins ( B1,B2,B3,B5,B6,B9-folic acid- and B12 ), vitamin C, biotin (vitamin H), vitamin P which melt in water.Does our body produce vitamin? Görgülü, mentioned that the human body cannot produce a great deal of the vitamins in any way or it can produce less than it requires. He adds: “Therefore, it is important that they are taken as supplementary, human body can only produce vitamin D with the pioneering of vitamin A and niacin which is far under the requirement. As a result of the lack of vitamin intake some defects occurs in the operation of the human organism and the metabolism of the tissues and cells.
How is the daily amount of vitamin requirement is determined?
In various scientific studies, the amount of vitamins, which need to be taken by is determined in accordance with activity, age, sex and illness for pregnant woman, the illness and growth period vitamin need is higher than the normal period, the Recommended Daily Allowance (RDA), which is applied in the USA since 1940s and renewed once in 8-10 years, may be used as a guideline. The daily vitamin requirement, which is recommended by this guideline for the last time, is as mentioned in the chart.
What are the conditions, increasing the need for vitamins?
Smoking, drinking alcohol, pregnancy, being ill, cancer treatment, some digestive problems, hormonal disturbances and some environmental factors increase the requirement for vitamin. However, when the vitamins are taken more than the required, most of the vitamin, especially the ones melting in the water are disposed by means of ballasts and kidneys without giving any benefit for the body and without changing.
If we are able to provide our requirement for vitamins, why do we use vitamins?
The people having adequate amount of fresh vegetables and fruits, and dialy products provide their possible requirements for vitamins. In some special cases the requirement for vitamins increase. The vitamins we take may not be sufficient for example in cold weather, in pregnancy, in illness, before and after the operation and even in the stage of psychological distress and because of some diseases. These are especially the vitamins A, B, D which is not in an adequate amount in our body. In such cases we need to take supplementary from outside.
What do you think about the news pollution in the field of health? What should be done to prevent this?
There should exist official publication associations for the explanations about the health, the national televisions should prepare television programs with the help of regular academic staff, there should be specialists for consultation with the society. Many people who are not even doctor and has no relation with health organize health issues seminars. The health knowledge courses in the secondary school should be more updated, understandable and comprehensive.
Is there a procedure related to vitamins, which is determined by the World Health Organization and the Ministry of Health? What is the proportion of complying with these?
To be able to use the vitamin as medicine the authorization of FDA in the USA and The Ministry of Health in Turkey is required. The decision is given after the inspection of the reliability of the agent inside the vitamin and the regularity of the dosage after some experiments. However some vitamins, which are proved to be harmless to the health, are sold in markets in the USA and Ministry of Agriculture is responsible from importation and distribution of these.
In recent days there was a heading in a newspaper as “Vitamin Pills Goes to the Waste Basket”. In the news, the results of a research in Copenhagen University were mentioned. It was written that the vitamin A, E and C pills, which are known as antioxidants, are noted to be inadequate for prolonging the lifetime. What is your assessment on this issue?
In the recent researches, it is indicated that there was not so much difference between the ones who use them and do not use them. However these vitamins has an effect related to increasing the resistance of the body. We shouldn’t expect miracles from any of the vitamins.
How does the general tendency of people in Turkey related to vitamin draw a chart in accordance with your observations and studies? What are the differences between Turkey and the other countries?
In Turkey the vitamins are the hopes of people. In the USA, craziness for vitamins was experienced but it ended. The American understood the vitamins are not so useful in fact. However in Turkey the trend has newly arrived and everyone tries to heal their diseases with vitamins, varios herbs and seeds they don’t regard as medicine. This is not true either. Such treatments can only be a supportive treatment for the real treatment.
THE SOURCES OF VITAMINS AND THE DISTURBANCES WHICH COULD OCCUR INTAKE OF EXCESSIVE AMOUNTS
Vitamin A: It is available in milk, eggs and in some green vegetables, in excessive intake, it makes a signiﬁcant toxic effect, in case of intakes over 50 000 U daily it causes nausea, vomiting, head ache, lack of appetite, visual deﬁciency, muscle and joint pains and demonﬆrate the ﬁndings of false cerebral tumors. In case of intake over 20 000 U especially by the pregnant woman physical and intellectual inabilities could be seen in the babies. In excessive intake of the Beta carotene, which is the foreground of the Vitamin A, may cause similar side-effects.
Vitamin D: The milk and diary products are the leading source of Vitamin D, furthermore the human body can make vitamin D synthesis with the sun beams from choleﬆerol, the intake of vitamins more than 5000 units may lead to conﬆipation, ﬆomach ache, dry mouth, damage in kidneys, ﬆone formation, electrolyte deﬁciency and functioning and rhythm problem in heart. Vitamin E: It is available in vegetable oils, nuts, herbs with green leaves and incase of intake over 1000 units some side effects may be seen.
Vitamin C: It is available in especially citrus, fresh vegetables and fruits; 1 gram daily is the recommended as the higheﬆ safe dosage. In case of use for longer terms with higher dosages, damages in digeﬆion, nausea, ﬆomachache, electrolyte deﬁciency in blood and ﬆone formation in kidneys may occur.
Vitamin B6: It is available in chicken meat, vegetables with green leaves, potatoes, banana, nuts, whole-wheat bread, despite being used in the treatment of some neurological damages, its use more then 6 months over 100 mg may increase damages in the nerves. In case of use over 2000 mg daily the damage in the nerves occurs speedier.
Vitamin K: It enables coagulation in blood and is animal based and the excessive intake is only possible during treatment when a high dose is injected. The risk of coagulation and embolism in blood may occur.
The well known certain toxic effects of vitamins are as summarized above, because of the environmental conditions of today, faﬆ food based diets, smoking, alcohol and synthetic subﬆance additives change the vitamin values, therefore the humans need supplementary vitamins in some cases. In such cases, however, the beﬆ way to follow is to consult with a doctor and use the correct vitamin in the correct dosage.
Source: QPlus 1. issue
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