Vitamins

Vitamin E is found naturally in some foods, added to others, and available as a dietary supplement.  “Vitamin E” is the collective name for a group of fat-soluble compounds with distinctive antioxidant activities. Naturally occurring vitamin E exists in eight chemical forms (alpha-, beta-, gamma-, and delta-tocopherol and alpha-, beta-, gamma-, and delta-tocotrienol) that have varying levels of biological activity. Alpha- (or α-) tocopherol is the only form that is recognized to meet human requirements. Serum concentrations of vitamin E (alpha-tocopherol) depend on the liver , which takes up the nutrient after the various forms are absorbed from the small intestine. The liver preferentially re secretes only alpha-tocopherol via the hepatic alpha-tocopherol transfer protein ; the liver metabolizes and excretes the other vitamin E forms . As a result, blood and cellular concentrations of other forms of vitamin E are lower than those of alpha-tocopherol and have been t...

Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, added to others, and available as a dietary supplement.  It is also produced endogenously when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis.  Vitamin D obtained from sun exposure, food, and supplements is biologically inert and must undergo two hydroxylations in the body for activation .  The first occurs in the liver and converts vitamin D to 25-hydroxyvitamin D [25(OH)D] ,  also known as calcidiol .  The second occurs primarily in the kidney and forms the physiologically active 1,25-dihydroxyvitamin D [1,25(OH) 2 D], also known as calcitriol . Vitamin D promotes C alcium  absorption in the gut and maintains adequate serum calcium and phosphate concentrations to enable normal mineralization of bone and to prevent hypocalcemic tetany. It is also needed for bone growth and bone remodeling by osteoblasts and osteoclasts .  ...

Vitamin C, also known as L-ascorbic acid, is a water-soluble vitamin that is naturally present in some foods, added to others, and available as a dietary supplement.  Humans, unlike most animals, are unable to synthesis vitamin C endogenously, so it is an essential dietary component Vitamin C is required for the biosynthesis of collagen, L-carnitine, and certain neurotransmitters ; vitamin C is also involved in protein metabolism .   Collagen is an essential component of connective tissue, which plays a vital role in wound healing.  Vitamin C is also an important physiological antioxidant  and has been shown to regenerate other antioxidants within the body, including alpha-tocopherol (vitamin E) .  Ongoing research is examining whether vitamin C, by limiting the damaging effects of free radicals through its antioxidant activity, might help prevent or delay the development of certain cancers, cardiovascular disease, and other diseases in which ox...

B Vitamins are Class of water soluble vitamins that play important roles in cell metabolism. B Vitamin family is made up of eight B Vitamins. Although they are commonly recognise as a group and often work together in the body. Each of the B Vitamins performs unique and important functions. Vitamin B1 - [Thiamin] Also known as  Vitamin B1 , thiamin is needed to help produce cellular energy from the foods you eat, and also supports normal nervous system function.   Thiamin is found in a wide variety of foods, with some of the best sources coming from lentils, whole grains and pork. Thiamin can also be found in red meats, yeast, nuts, sunflower seeds, peas, milk, cauliflower, spinach and legumes. Cautions- Anaphylaxis may occasionally follow injection. MHRA/CHM Advice (september 2007)    Although potentially serious allergic adverse reactions may rarely occur during, or shortly after,pareneral administration, the CHM has recommended that;    ...

 Vitamin A is Fat soluble, stored in Fat cell inside your body that is naturally presents in many foods. Top Vitamin A Foods Are Beef Liver, Carrots, Sweet Potato, Kale, Spinach,  Apricots, Eggs, Winter Squash.  This vitamin is very important for Normal Vision, The immune system, Hair Growth & for The Reproduction. Also helps to heart, lungs, kidney, liver and other organs to function properly. For Skin Heath. Vision support When light shines on the retina, in the human eye, a molecule called rhodopsin is activated. The activated rhodopsin sends a signal to the brain which results in vision.  Vitamin A is a critical part of the rhodopsin molecule, which is why a deficiency in Vitamin A can cause night blindness. Beta carotene, the form of vitamin a found in plants, plays a role in preventing molecule degeneration, the leading cause of age related blindness.   Vitamin A Deficiency will lead to Night Blindness and eventually can cause thick...

Vitamins are nutrients that your body need to function and fight off diseases. It is an organic compound and a vital nutrient that an organism need in limited amounts . An organic chemical compound is called a vitamin when the organisms can not synthesise the  compound in sufficient amount,and it must be obtained through diet . There are 13 vitamins essential to your body. Vitamins can divided to two types depending on their solubility.  Fat  Soluble Vitamins  Water Soluble Vitamins Fat Soluble Vitamins  Stored in your fat cells consequently requiring fats in Oder to absorb.  Vitamin A - comes from Orange colour fruits and Vegetables ; Dark Leafy Greens, Inside the body produced from  b eta carotene , and  n iacin , from the amino acid tryptophan Vitamin D - fortified milk and dairy products; cereals, synthesised in the skin  with the help of the natural ultraviolet  wavelength of sunligh...