Nutrition - Triacylglycerol is a major source of energy...

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Nutrition, Metabolism, and Body Temperature Regulation Nutrition Nutrients Nutrition is the taking in and the use of food. Nutrients are the chemicals used by the body and consist of carbohydrates, lipids, proteins, vitamins, minerals, and water. Essential nutrients cannot be produced by the body or cannot be produced in adequate amounts. Kilocalories A kilocalorie is the energy required to raise the temperature of 1000 g of water from 14°C to 15°C. A kilocalorie is the unit of measurement used to express the energy content of food. Carbohydrates Carbohydrates include monosaccharides, disaccharides, and polysaccharides. Most carbohydrates we ingest are from plants. Carbohydrates are used as an energy source and for making DNA, RNA, and ATP. The recommended amount of carbohydrate is 125 to 175 g daily. Lipids Lipids include triacylglycerol, phospholipids, steroids, and fat-soluble vitamins.
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Unformatted text preview: Triacylglycerol is a major source of energy. Prostaglandins are involved in inflammation, tissue repair, and smooth muscle contraction. Cholesterol and phospholipids are part of the cell membrane. Some steroid hormones regulate the reproductive system. • It is recommended that fats account for no more than 30% of the total kilocaloric intake. Proteins • Proteins are chains of amino acids. • Animal proteins tend to be complete proteins, whereas plant proteins tend to be incomplete. • Proteins are involved in structural strength, muscle contraction, regulation, buffering, clotting, transport, ion channels, receptors, and the immune system. • The recommended daily consumption of protein is 0.8 g/kg of body weight per day....
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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