CHAPTER 7 - needed for energy metabolism and deficiency of...

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CHAPTER 7: VITAMINS Dr. Olfert's Brief Topic Overview Vitamins are essential nutrients needed in small amounts by your body for growth, reproduction, and maintenance of good health. There are 13 in all, some fat-soluble and some water-soluble. The fat-soluble vitamins, A, D, E, and K, require dietary fat for absorption. Since these vitamins are stored in the body, too much of each may be toxic. The water-soluble vitamins, (B-vitamins and C), are excreted by the body, so deficiency may be more of a concern than toxicity. Air, water, and heat exposure can be destructive to vitamins. Vitamin A plays a role in eye health and immunity. Vitamin E functions as an antioxidant and an anticoagulant. Vitamin K is required for your blood to clot, while Vitamin D is critical for bone health. The water-soluble vitamins are coenzymes, helping your body with its chemical reactions. Thiamin is
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Unformatted text preview: needed for energy metabolism, and deficiency of it leads to beriberi. Riboflavin is also needed for energy metabolism. Deficiency of niacin may lead to pellagra. Anemia is possible with insufficient B6, folate, and B12. Vitamin C has antioxidant and immunity roles in your body. Pantothenic acid and biotin also help with energy metabolism. Antioxidant nutrients, such as vitamins A, C, and E, prevent cell damage by neutralizing free radicals. The best way to get vitamins is through consuming foods, including fortified foods, rather than through supplementation. However, some individuals, such as pregnant women or strict vegans, may have more of critical need for supplements. Above all, people should be sure to get your advice from a credible health care professional when it comes to decisions regarding dietary supplements....
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This note was uploaded on 05/20/2010 for the course HED 155 taught by Professor Olfert during the Spring '10 term at Grossmont.

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