Monday, 5 December 2016

Role of Vitamins in our Body

Role of Vitamins in our Body

 Vitamin:-
      An organic compound that has a vital nutrients and requires in a little amount for organisms is known as Vitamin.Vitamins refers to a ‘vitamir’ compounds that essentially show biological activity to the particular vitamin.All vitamins are not so far necessary for all,but speciy for particular organisms.For Example one type of the vitamin i.e,ascorbic acid it has specified for humans but not for animals.About thirteen vitamins are universally recognized at present.


Classification of Vitamins:-
       Vitamins are either Classified into two types

  •                 Fat-soluble Vitamins
  •                 Water-soluble Vitamins


Fat-soluble Vitamins:-
           These type of vitamins are mainly found in fatty foods and animals products such as milk,eggs,oils,fish and butter.It is not necessary to get all vitamins in time,if you used it more as compared to body requirements it will cause dangerous effects on body.
Fat-soluble vitamins are;
 
  •          Vitamin A
  •          Vitamin D
  •          Vitamin E
  •          Vitamin K


Water-soluble Vitamins:-
          Water-soluble vitamins are not stored in the body,so these vitamins are necessary in much more requirements as compared to Fat-soluble vitamins.Water-soluble vitamin are found in a wide variety of food like that of Vegetables,Potatoes,Grains,Milk and diary foods.
Water-soluble Vitamins;

  •      Vitamin C
  •      Vitamin B
  •      Folic acid

Role of Vitamin A and and E in the Body:-

    Vitamin A:-
               Vitamin A is an essential component of rhodopsin,a protein that absorbs light in the retinal receptors because it supports the normal differentiation and functioning of the conjunctival membranes and cornea.A large quantity of Vitamin A is found in Liver and Fish oils,also the other sources of the vitamin A milk and egg which also include some provitamin.Vitamin A comes from leafy green vegetables,tomato products and vegetables oils
Role of Vitamins in our Body
      This type of vitamin is rarely deficient in United States,because of developing countries.According to WHO(World Health Organization) 190 preschool- aged children and 19.1 million pregnant women have a serum retinal concentration low as 0.7 micromoles/L.Chronic diarrhea also leads to excessive loss of Vitamin A in young childrens and in adults its low level will leads to the causes of Diarrhea.The most common symptom of Vitamin A deficiency in young children and in pregnant women.The deficiency will be observed as the early signs of Xerophthalmia (The symptom of this disease is night blindness).
      Vitamin A plays an important role in regulating cell growth and differentiation and the defficency sometimes cause Cancer.Measles is a major cause of morbility and mortality in children in develoing countries.About half of all measles death happens in Africa,but the low-income contries are under this diseases.The deficiency of Vitamin A cause several measles.The World Health Organization recommended high dose of Vitamin A for childres over Age 2 who lives in Vitamin A deficient areas.

Vitamin E:-
Role of Vitamins in our Body      Like that of Vitamin A Vitamin E is an essential component for life.Sodium Naturally occurring Vitamin E exists in eight chemicals forms,that have varying levels of biological activity topopherol is the only form that is recognized to meet human requirements.Serum Concentration of Vitamin E depend on liver,which takes up the nutrients after the various forms are absorbed from the small intestine .The liver preferentially resecretes only alpha-topopherol via the hepatic alpha-topopherol transfer protein.
         Vitamin E deficiency is rare and overt deficiency  symptoms have not been found in healthy people who obtain little Vitamin E from their diets.Premature babies of very low birth weight might be deficient in Vitamin E.Vitamin E infants might be reduced the risk of many complication diseases like that of affecting on Retina.It also control many coronary and cardiovascular diseases which is caused by the deficiency of vitamin E.

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