NUTRITN 130 Lecture 1: NUTRITION 130 Lecture 1: Diet and Physical Activity: Impact on Health
Document Summary
Short term and long term physical changes in the body. What do we mean when we say physical activity . Any movement caused by muscle contraction that results in caloric expenditure. What do we mean when we say nutrition . The science of food, the nutrients and the substances therein, their action, interaction, and balance in relation to health and disease, and the process by which the organism ingests, digests, absorbs, transports, utilizes, and excretes food substances. The science of the food; what is in food. Nutrients: chemicals found in foods that are critical to human growth and functions. Fats and oils 9 kcal/gm proteins 4 kcal/gm. Don"t provide energy (needed in process to break out other foods to get energy): Estimated average requirement ear: average daily nutrient intake level estimated to meet the needs of of healthy individuals in a particular life stage or gender group.
