Vitamin Supplement
Vitamin Supplement are essential for health
We have all the vitamins you need at our online vitamin shop. Vitamins are essential for life. They cannot be made in the body and therefore should come from food. Vitamins do not provide the body with energy – they only help the body release energy from food that is eaten. Vitamin supplements are indicated in some cases only. Excess intakes of fat - soluble vitamins are not recommended. A healthy varied diet will usually supply the body with all the vitamins online that are needed.Vitamin history
Some Vitamin history :- The connection between our diet and both prevention and treatment of a number of diseases has been known for a long time. However, until the beginning of the 1900s it was assumed that the healing effect was limited to certain foods. What they did not realise was that for instance the abilities of liver to cure night blindness was due to a substance (vitamin A), which was also found in other foodstuffs.
Until around the year 1900 it was assumed that a healthy diet should contain carbohydrates, proteins, minerals, water and some fats. During the first decades of the 20th century, researchers discovered that our diet contained other substances vital for keeping the body alive. Researchers were unable to identify these substances until in the 1930s when chemical methods of analysis had become more advanced. The principle was to extract the substances from foodstuffs which were likely to contain plenty of the substance in question, for instance vitamins A and D from fish liver, B vitamins from rice and liver or vitamin C from citrus fruits and rose hip.The identification was not unproblematic. Many vitamins are so fragile that air and heat destroy them. Furthermore, the vitamin content is typically in the order of 1 part vitamin to 2,500 parts of dried foods, so a reasonable amount of vitamins required vast quantities of foodstuffs. The process usually resulted in a small amount of vitamin in pure crystalline form, which was analysed for chemical properties.
At the beginning it was clear to researchers that some vitamins were soluble in fat, whereas others were soluble in water. Some contained nitrogen, others did not. And their functions seemed to be quite different. Then it was decided to give each new vitamin a letter as they were discovered. As it turned out later, there were many different B vitamins, so they were also given a number. Sources Of
VitaminsVitamins, though they are available from a variety of sources, are unevenly distributed in natural sources. For example, some vitamins, such as vitamin D, are produced only by animals, whereas other vitamins are found only in plants. (For natural sources of vitamins, see table.) All vitamins can be synthesized, or produced commercially, from foods and other sources, and there is no evidence that natural vitamins are superior to those that are synthetically derived.
Some foods are fortified with vitamins--that is, vitamins that are not normally present in the food, or that have been removed during processing, are added to the food before it is sold. Milk, for example, is fortified with vitamin D, and vitamins that have been lost from flour during processing are often replaced.
Although vitamin supplementation is generally unnecessary for otherwise well-nourished persons, there are times when the body's vitamin requirements may increase and when vitamin supplementation may be essential. Those likely to require such supplements include pregnant women, the elderly, and the chronically ill. Excessive intakes of supplemental vitamins should be avoided, however, because of the possibility of toxicity.
How Vitamins supplements Work
Vitamins are essential for life. They cannot be made in the body and therefore should come from food. Vitamins do not provide the body with energy – they only help the body release energy from food that is eaten. Vitamin supplements are indicated in some cases only. Excess intakes of fat - soluble vitamins are not recommended. A healthy varied diet will usually supply the body with all the vitamins needed.
In the body, proteins, carbohydrates, and fats combine with other substances to yield energy and build tissues. These chemical reactions are catalyzed, or accelerated, by enzymes produced from specific multi vitamins, and they take place in specific parts of the body.
vitamins are needed by humans are divided into two categories: water-soluble vitamins (the B vitamins and vitamin C) and fat-soluble vitamins (A, D, E, and K). The water-soluble multi vitamins are absorbed by the intestine and carried by the circulatory system to the specific tissues where they will be put into use. The B vitamins act as coenzymes, compounds that unite with a protein component called an apoenzyme to form an active enzyme. The enzyme then acts as a catalyst in the chemical reactions that transfer energy from the basic food elements to the body. It is not known whether vitamin C acts as a coenzyme.
When a person takes in more water-soluble vitamins than are needed, small amounts are stored in body tissue, but most of the excess is excreted in urine. Because water-soluble vitamins are not stored in the body in appreciable amounts, a daily supply is essential to prevent depletion.
Fat-soluble vitamins seem to have highly specialized functions. The intestine absorbs fat-soluble vitamins, and the lymph system carries these vitamins to the different parts of the body. Fat-soluble vitamins are involved in maintaining the structure of cell membranes. It is also believed that fat-soluble vitamins are responsible for the synthesis of certain enzymes.
The body can store larger amounts of fat-soluble vitamins than of water-soluble vitamins. The liver provides the chief storage tissue for vitamins A and D, while vitamin E is stored in body fat and to a lesser extent in reproductive organs. Relatively little vitamin K is stored. Excessive intake of fat-soluble vitamins, particularly vitamins A and D, can lead to toxic levels in the body.
Many multi vitamins supplement work together to regulate several processes within the body. A lack of vitamins or a diet that does not provide adequate amounts of certain vitamins can upset the body's internal balance or block one or more metabolic reactions.
More vitamin supplement on our website
Please note: All content of this web site is for information purposes only and is not a substitute for professional medical advice; rather it is designed to support, not replace, the relationship between you and your healthcare providers. You should make sure that you carefully read all product packaging and labels prior to use. If you have, or suspect you may have, a health problem you should consult your doctor. Please consult your doctor before taking any new product, particularly if you are already under medical care.
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