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Human Nutrition session 4

Human Nutrition session 4. Dr Mervat Salah. How FOOD Becomes YOU. Defn of Nutrition – several processes Ingestion & digestion | Absorption | Transportation | Utilization | Excretion. The Gastrointestinal Tract.

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Human Nutrition session 4

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  1. Human Nutrition session 4 Dr MervatSalah

  2. How FOOD Becomes YOU • Defn of Nutrition – several processes Ingestion & digestion | Absorption | Transportation | Utilization | Excretion Nutrition & wellness - Nutritional perspective. Dr.mervat salah.

  3. The Gastrointestinal Tract Different characteristics of foods, including color, form, texture, and flavor, and a host Of psychosocial factors ,invite consumption. However ,once inside the alimentary tract (GI), their appeal is no longer important. The process of digestion reduces them to a size and form capable of absorption and transportation to individual cells .

  4. The Gastrointestinal Tract The GI tract extends from the mouth to the anus and includes the oropharyngeal structures, esophagus, stomach, liver and gallbladder, pancreas, and small and large intestine It is one of the largest organs in the body It is becoming increasingly apparent that the health of the body depends on a healthy and functional GI tract.

  5. Most of the major nutrients in foods must be made smaller, unbound, or more soluble before they can be absorbed from the intestine. The digestive system is responsible for reducing these large particles and molecules into smaller more readily absorbed units and converting the insoluble molecules into soluble forms. Proper functioning of the absorptive and transport mechanisms is crucial in the delivery of the products of . digestion to individual cells

  6. Malfunctions in any of Gastrointestinal Tract systems can result in malnutrition, even when an adequate diet is being consumed.

  7. . Optimum function of the human GI tract seems to depend on a more constant supply of foods rather than consumption of large amounts of foods interrupted by prolonged .

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