NHM 101 Lecture 1: Chapter 1.docx

• School: University of Alabama
• Department: Food Science
• Course: NHM 101
• Professor: Rusung Tan

Document Summary

Nutrients actions within the body include ingestion, digestion, absorption, transport, metabolism and excretion: refers to human behaviors related to food and eating, nutrition is both pure science and a social science, what is diet, the foods and beverages a person eats, our society does not use this simple definition, food, food is products from plants and animals, when taken into the body, yield energy and nutrients for growth and maintenance, many factors influence someone"s food choices, factors, preferences, habit, culture, social interactions, availability, income, emotions, values, body weight, health benefits. Energy in food is chemical energy: no single food supplies all the nutrients the body needs to function, six major classes of nutrients, carbohydrate simple (sugars), complex (starch, grain products, protein meat, seafood, nuts, lipids (fats) animal fats and plan oils, vitamins a, b, c, d, k, minerals calcium, zinc, sodium, water, macronutrients: required by the body in large amount.