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Excessive consumption of vitamins can be dangerous for health, warn experts. TA large amount of vitamin A can reduce bone strength, said "24 hours" Lalka Rangelova, Nutrition and Dietetics Specialist at the National Center for Public Health and Analysis.
Special attention should be given to the liver because its vitamin A content is very high.. It is the only vitamin that can be overdosed by food. It can reduce bone strength and cause dryness and flaking, dermatitis, hair growth disorder, bone and joint pain, headache, fatigue, insomnia.
Cminerals and minerals are extremely important for the proper functioning of all the organs of the human body. Even in good health, people use dietary supplements to boost their immune system. Their use is intensifying, especially during the colder months, explains Professor Rangelova.
In his words, hthe miserable he does not need to additional the reception of vitamins in the form of nutritional supplements. "That's enough eat healthy, balanced and adequate. Have normal physical activity and sun exposure for at least 15 minutes a day"says Professor Lalka Rangelova, nutrition and dietetics specialist at the National Center for Public Health and Analysis.
Vitamins are involved when cell membranes stabilize, donors are hydrogen and electrons, hormonal and catalytic activity, increase the immuno-biological reactivity and resistance of the body, necessary for the normal metabolism of other nutrients and many others.
Well,daily intake of a variety of foods is sufficient to provide the necessary doses of most vitamins, with the exception of vitamin D. It was found that 90% of the required quantities are obtained by direct exposure to the sunexplained the doctor.
The main vitamins that the body needs are A, E, K, D, C and those of group B.. The first 4 are fat soluble. That's the reason their unused quantities can accumulate as stocks in the body. Vitamin C and Group B are water soluble and their inventory capabilities are greatly reduced. Vitamin B12 is an exception, explained Professor Rangelova.
"If there is no deficiency in a vitamin, it is best to take it from natural sources, that is to say in foods, rather than in the form of synthetic compounds as in dietary supplements. "
The main sources of vitamin A are liver, eggs, butter, carrots, apricots, pumpkins, etc. vitamin D – fish oil, oily fish, caviar, eggs; vitamin E – vegetable oils, cereals, nuts; vitamin B1 – beer and yeast, oatmeal, whole grains, liver, kidneys; vitamin B2 – milk, dairy products, eggs and fish, vitamin B6 – meat, fish, beans, whole grains; folate – green leafy vegetables, whole grains, beans, broccoli; vitamin B12 – liver, clams, oysters, meat, egg yolk and vitamin C – hips, red peppers, citrus, leafy vegetables
Nutritional supplements are used to treat vitamin deficiencies. The goal is fill quickly the missing quantities, because their shortage seriously affects our physical and mental abilities and our quality of life. "It's very important to know that Vitamin deficiencies last a long time without any specific symptoms, which makes diagnosis difficult"explained Professor Rangelova.
The absorption of dietary supplements poses a health risk as it can be overdosed.
"If some vitamins are not toxic or have adverse effects on the body, at doses well above the recommended doses, the toxic effects of vitamins A, D, E and K are well studied," warned the professor. Rangelova.
Vitamin D causes increased levels of calcium in the blood and has badociated effects – apathy, anorexia, constipation, diarrhea, dry mouth, feeling of fear, headache, nausea, thirst, and general weaknessSubsequent manifestations of intoxication are related to soft tissue calcification and include bone pain, cardiac arrhythmia, high blood pressure, kidney damage, weight loss.
The hyperception of vitamin E can increase the risk of heart failure and vitamin C – kidney stones.
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