Vitamin C | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-06-23

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Vitamin_C


00:01:54 1 Biology
00:02:03 1.1 Significance
00:03:47 1.2 Deficiency
00:06:17 2 Uses
00:06:58 2.1 Scurvy
00:08:03 2.2 Infection
00:10:46 2.3 Cancer
00:13:40 2.4 Cardiovascular disease
00:14:43 2.5 Brain function
00:15:30 2.6 Other diseases
00:16:08 3 Side effects
00:17:51 4 Diet
00:18:00 4.1 Recommended levels
00:22:29 4.2 Food labeling
00:23:48 4.3 Sources
00:24:11 4.3.1 Plant sources
00:24:59 4.3.2 Animal sources
00:25:46 4.4 Food preparation
00:26:53 4.5 Supplements
00:27:42 4.6 Food fortification
00:28:24 4.7 Food additives
00:29:27 5 Pharmacology
00:29:36 5.1 Pharmacodynamics
00:31:59 5.2 Pharmacokinetics
00:32:08 5.2.1 Absorption
00:33:36 5.2.2 Transport
00:34:47 5.2.3 Excretion
00:35:43 6 Chemistry
00:37:00 7 Testing for levels
00:37:44 8 Biosynthesis
00:38:41 8.1 Animal pathway
00:42:12 8.2 Plant pathways
00:44:20 8.3 Evolution
00:46:58 9 Industrial synthesis
00:49:48 10 History
00:49:57 10.1 Folk medicine
00:50:48 10.2 Scurvy at sea
00:54:03 10.3 Discovery
00:57:36 10.4 Large doses
01:00:11 11 Society and culture
01:00:32 12 Pharmacopoeias



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SUMMARY
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Vitamin C, also known as ascorbic acid and l-ascorbic acid, is a vitamin found in various foods and sold as a dietary supplement. It is used to prevent and treat scurvy. Vitamin C is an essential nutrient involved in the repair of tissue and the enzymatic production of certain neurotransmitters. It is required for the functioning of several enzymes and is important for immune system function. It also functions as an antioxidant.Current evidence does not support its use for the prevention of the common cold. There is, however, some evidence that regular use may shorten the length of colds. It is unclear whether supplementation affects the risk of cancer, cardiovascular disease, or dementia. It may be taken by mouth or by injection.Vitamin C is generally well tolerated. Large doses may cause gastrointestinal discomfort, headache, trouble sleeping, and flushing of the skin. Normal doses are safe during pregnancy. The United States Institute of Medicine recommends against taking large doses.Vitamin C was discovered in 1912, isolated in 1928, and in 1933 was the first vitamin to be chemically produced. It is on the World Health Organization Model List of Essential Medicines, which lists the most effective and safe medicines needed in a health system. Vitamin C is available as an inexpensive generic and over-the-counter medication. Partly for its discovery, Albert Szent-Györgyi and Walter Norman Haworth were awarded the 1937 Nobel Prizes in Physiology and Medicine and Chemistry, respectively. Foods containing vitamin C include citrus fruits, kiwifruit, broccoli, Brussels sprouts, raw bell peppers, and strawberries. Prolonged storage or cooking may reduce vitamin C content in foods.