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Article: Vitamins, Water-Soluble
- Article from:
- Nutrition and Well-Being A to Z
- Author:
CopyrightCOPYRIGHT 2004 The Gale Group, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Vitamins, Water-Soluble
Vitamins
are essential organic substances that are needed in small amounts in the
diet
for the normal function, growth, and maintenance of body tissues.
Water-soluble
vitamins consist of the
B vitamins
and vitamin C. With exception of vitamin B
6
and B
12
, they are readily excreted in urine without appreciable storage, so frequent consumption becomes necessary. They are generally nontoxic when present in excess of needs, although symptoms may be reported in people taking megadoses of
niacin
, vitamin C, or pyridoxine (vitamin B
6
). All the B vitamins function as coenzymes or cofactors, assisting in the activity of important enzymes and allowing ...
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Article: Obesity tied to levels of fat-soluble ...
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... ... have higher serum levels of the fat-soluble vitamins A and E than do their thinner counterparts ... patients had lower levels of water-soluble vitamins [B.sub.12] and folate, and ... The increased levels of fat-soluble vitamins are due to the increased adipose tissue ...
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