FD SC 2140 Lecture Notes - Lecture 3: Reference Daily Intake, Facilitated Diffusion, Overnutrition
12 Jul 2018
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Document Summary
3. 1 proper nutrition making the right food choices: nutrition is the study of foods an their contribution to health and disease. Malnutrition: is the imbalance of essential nutrients, resulting in poor nutrition and health. Undernutrition: dietary deficit for one or more nutrients occurs, and deficiency diseases result. Overnutrition: excessive intake of one or more nutrients may lead to toxic response and overdose disease: enzymes are largely responsible for the digestion or breakdown of food molecules into absorbable units or pieces. They are protein molecules that cause chemical reactions to occur, without being altered in the process. Hormones and nerve pathways act as feedback regulators to coordinate digestion and absorption actions, and are part of the body"s homeostatic mechanism. Reference daily intake (rdi) is the reference intakes of vitamins a & c and of minerals calcium and iron. Daily reference values (drv) is the reference intake suggestions for fat, saturated fat, cholesterol, sodium, potassium, total carbohydrates, and fiber.
