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Vitamin C: Amounts
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Scurvy is an avitaminosis resulting from lack of vitamin C, as without this vitamin, the synthesised collagen is too unstable to meet its function. Scurvy leads to the formation of liver spots on the skin, spongy gums, and bleeding from all mucous membranes. The spots are most abundant on the thighs and legs, and a person with the ailment looks pale, feels depressed, and is partially immobilized. In advanced scurvy there are open, suppurating wounds and loss of teeth and, eventually, death. The human body can store only a certain amount of vitamin C,[29] and so the body soon depletes itself if fresh supplies are not consumed.
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To see whether a particular food has a vitamin-C reading, open the Food Dictionary and check the food's nutrient profile. If you find a question mark beside "Vitamin C," it means the amount is unknown. (To see
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The term vitamin derives from experiments conducted early in the twentieth century, which indicated that proper nutrition was dependent upon introduction of one or several nitrogen-containing amines into the diet. Considered vital to life, these amines were dubbed "vitamines" by Polish scientist Casimir Funk, and the term was soon applied to all organic molecules that are essential to metabolism in living organisms. When it was later realized... that not all of these organic molecules contain amines, the letter "e" was dropped from the word, which was already in widespread use. Vitamins serve essentially the same role in all forms of life, but higher organisms have lost the ability to synthesize the molecules (or to synthesize them in adequate amounts) and must consume them in small quantities in the diet. This necessity has come to be included as part of the presiding definition of a vitamin, and many molecules that are necessary for proper health and were once considered vitamins, are no longer classed as such since they may be synthesized in sufficient quantities by the body.
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If you consume too much Vitamin C, it may not be harmful. Vitamin C is a water-soluble vitamin therefore excess amount is excreted in your urine. But it can develop symptoms such as kidney stones and diarrhea because it is an acid.
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Ritter pointed out that previous studies of vitamin C have recommended several grams a day of vitamin C, which could potentially be toxic. But in their study, the patients took a much lower amount.
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