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Home » Vitamin (page 3)


Are Vitamin Supplements Really Beneficial?


Taking in a multivitamin, be it in whatever form, will obviously give a person the very benefit of what is known as convenience. It will be much convenient for a person, particularly the very busy ones, to take one multivitamin supplement than to take a lot other of the varied kinds that contain separate vitamin supplements.

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Top 6 bodybuilding supplements you need


Have you visited the health and sports nutrition store recently? You can find lot of products here if you are a man looking to lose a little fat or build some muscles. A healthy diet, some cardio, and various weight-training exercises are the first things to do in order to reach your goal.

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What are the benefits of Vitamin C?


Vitamin C is also commonly referred to as ascorbic acid, and provides numerous healthbenefits including the ability to prevent cell damage and repair wounds, the promotion of healthy teeth and gums, and an overall strengthening of the immune system. Vitamin C is also responsible for helping the body absorb iron, and it has also been linked with the prevention of disease and the delaying of aging because Vitamin C destroys free radicals, which are the molecules that are most commonly associated with cell damage and signs of aging. Vitamin C provides numerous health benefits, and promotes overall excellent health for the entire body. Vitamins are categorized based on the substances in which it ca be dissolved, therefore Vitamin C is categorized as a water soluble vitamin along with the B complex group of vitamins. If there are water soluble vitamins in your system that is not being used by your body, they will be naturally expelled from your body through your urine. For this reason, unlike fat soluble vitamins, it is important for you to get a constant supply of water soluble vitamins so that you consistently have enough in your system. Because Vitamin C is a water soluble vitamin, ...

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Fat soluble vitamins


Vitamin A Vitamin A is a group of unsaturated nutritional organic compounds, that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids, among which beta-carotene is the most important. Vitamin A has multiple functions: it is important for growth and development, for the maintenance of the immune system and good vision. Vitamin A is needed by the retina of the eye in the form of retinal, which combines with protein opsin to form rhodopsin, the light-absorbing molecule necessary for both low-light (scotopic vision) and color vision. Vitamin A also functions in a very different role as retinoic acid (an irreversibly oxidized form of retinol), which is an important hormone-like growth factor for epithelial and other cells. In foods of animal origin, the major form of vitamin A is an ester, primarily retinyl palmitate, which is converted to retinol (chemically an alcohol) in the small intestine. The retinol form functions as a storage form of the vitamin, and can be converted to and from its visually active aldehyde form, retinal. Retinol, the form of vitamin A absorbed when eating animal food sources, is a yellow, fat-soluble substance. Since the pure alcohol form is unstable, the vitamin is found in tissues ...

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Water soluble vitamins

Vitamin C Vitamin C or L-ascorbic acid, or simply ascorbate (the anion of ascorbic acid), is an essential nutrient for humans and certain other animal species. Vitamin C refers to a number of vitamers that have vitamin C activity in animals, including ascorbic acid and its salts, and some oxidized forms of the molecule like dehydroascorbic acid. Ascorbate and ascorbic acid are both naturally present in the body when either of these is introduced into cells, since the forms interconvert according to pH. Vitamin C is a cofactor in at least eight enzymatic reactions, including several collagen synthesis reactions that, when dysfunctional, cause the most severe symptoms of scurvy. In animals, these reactions are especially important in wound-healing and in preventing bleeding from capillaries. Ascorbate may also act as an antioxidant against oxidative stress. However, the fact that the enantiomer D-ascorbate (not found in nature) has identical antioxidant activity to L-ascorbate, yet far less vitamin activity, underscores the fact that most of the function of L-ascorbate as a vitamin relies not on its antioxidant properties, but upon enzymic reactions that are stereospecific. “Ascorbate” without the letter for the enantiomeric form is always presumed to be the chemical L-ascorbate. In humans, ...

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Vitamin basics


A vitamin is an organic compound that is essential for an organism, although only in limited amount. Since the body is not always capable of producing the sufficient amount of vitamins, vitamins are also needed in the form of nutrients. Vitamins are classified according to their biological and chemical activity, not their structure. Our body can produce some vitamins under certain circumstances. Regarding humans, the link between Vitamin-D and sunshine exemplifies the above mentioned phenomenon. Not all substances have the same effect on every living organism. A substance might serve as vitamin for one, but not for the other. Vitamin-C is a good example for this, because most animals can produce it. Essential amino acids and essential fatty acids do not belong to vitamins, because they are needed in high quantities. So far, the number of vitamins acknowledged by science has decreased to 13.In general, a well-balanced diet cover the body’s vitamin needs. However, when putting a dietary together, one should not only aim that the raw material of the food should be rich in vitamins, but one should also take into consideration the fact that during cooking – especially during heating – 10% to 50% of vitamins might be ...

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