HPER-N - Health, Physical Education And Recreation HPER-N 220 Lecture Notes - Lecture 10: Carbohydrate Metabolism, Vitamin A, B Vitamins

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Vitamins: vitamins are essential organic substances that are needed in small amounts for normal function, growth, and maintenance of the body, there are two different classes of groups depending on their solubility: Antioxidant; prevents break-down of vitamin a and unsaturated fatty acids. Absorption and storage: fat-soluble: stored mainly in the liver and fatty tissues. Unless taken in pill form toxic effects unlikely. Length of symptoms of toxicity or deficiencies will vary. Vitamins are compounds: classified by amount needed. Growing body of research on minerals in nutrition and roles in the body. Difficult to identify exact amounts since they are only needed in small amounts. Diet (different substances compete and hinder for certain sites) Active vitamin d and calcium: majority of minerals absorbed in the small intestines. Some in the stomach and large intestines. Many carried by specific transport proteins: toxicities can happen when in large quantities (ul)

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