ESS 3 Lecture Notes - Lecture 1: Overnutrition, Energy Density, Vitamin A Deficiency
Document Summary
Biology (genetics), biochem (chemical reactions), physiology (how we break down food for our needs) Knowledge gained from sequencing the human genome. Nutrition : study of dietary intake and behavior as well as nutrients and constituents in food including their use in body and influence on human health. Food provides nutrients maintenance of proper body functioning. Nutrients : chemical substances that provide nourishment necessary for growth and the. Essential nutrients : nutrients that body cannot produce or produce in sufficient. Nonessential nutrients : can be manufactured by body; still have vital roles in body amounts to meet body"s needs (supplied through diet) processes (ex. cholesterol) Fats (lipids) organic, energy- yielding, macronutrient. Macronutrient = need in relatively large amounts; micronutrient = need in smaller amounts. Fruits and vegetables decrease risk for disease; processed foods increase risk. Diet significantly influences risk for 5 of the 10 leading causes of death in the us (heart disease, cancer, etc. )
