NTR_300_Antioxidants - Fundamentals of Nutrition Vitamins...

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1 Fundamentals of Nutrition Vitamins and Minerals Antioxidants NUT 300 Dr. WH Turnbull Unless otherwise stated, all slides and information are derived from: Food Nutrition & Diet Therapy and Krause's Food & Nutrition Therapy, 11th 12th Edns ., 2004 & 2008. By Perspectives in Nutrition, 7th Ed., 2007. By Wardlaw & Hampl, Publ. Mc Graw Hill
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2 Objectives To define the term antioxidant. To understand how antioxidants work. To discover where major antioxidants are found. To determine what a free radical is. To determine the role of antioxidants in disease prevention and treatment. To discuss phytochemicals.
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3 Introduction All of the body’s cells use oxygen to produce energy for their work. During these normal metabolic processes, oxygen sometimes reacts with body compounds to produce highly unstable compounds known as free radicals . A single electron without a partner is highly unstable and needs to pair up with another electron.
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4 Definition of Antioxidant A compound that protects others from oxidation by being oxidized itself. An antioxidant donates electrons to another substance; that substance becomes reduced as the antioxidant simultaneously becomes oxidized.
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This note was uploaded on 11/21/2011 for the course PUBH 1517 taught by Professor Paula.goldberg during the Winter '11 term at Life Chiropractic College West.

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NTR_300_Antioxidants - Fundamentals of Nutrition Vitamins...

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