NTR 100 Nutrition Study Guide Chapters 1-3 | Complete

Nutrition: the science of food, the nutrients, and substances therein, their action, interaction, and balance in relation to health and disease, and the process by which the organism ingests, absorbs, transport, utilizes, and excretes food • how food is linked to health and disease • ingestion, digestion, absorption, transport and excretion of food substances Nutrients come from food • provide energy • provide building blocks • vital for growth and maintenance • essential Essential nutrient • omission leads to decline in biological functions • regain normal function when restored to the diet • has specific biological function Poor diet and sedentary lifestyle are risk factors for chronic diseases—poor diet and sedentary lifestyle contribute to 6/10 leading causes of death in the united states. combination of poor diet and lack of physical activity are the second leading cause of death in the united states. • Disease of the heart (29% of deaths) • Cancer (22%) • Cerebrovascular disease (~7%) • Diabetes (3%) • Accounts for ~2/3 of all deaths.......