Chapter 7 Flashcards
(18 cards)
The physiological impulse to seek food
Hunger
When does hunger occur
When our brains initiate a physiological response that prompts us to seek food for the energy and nutrients that our bodies require to maintain proper functioning
The constituents of food that sustain humans physiologically: water, proteins, carbohydrates, fats, vitamins, and minerals
Nutrients
The learned desire to eat; normally accompanies hunger but is more psychological than physiological
Appetite
The science that investigates the relationship between physiological function and the essential elements of the foods we eat
Nutrition
Essential nutrients
Nutrients that our bodies cannot synthesize in adequate amounts; we must obtain them from the foods we eat
Six groups of essential nutrients
Water, proteins, carbohydrates, fats, vitamins, minerals
Macronutrients
Nutrients we need in large amounts: water, proteins, carbohydrates, and fate
Micronutrients
Nutrients needed in smaller amounts: vitamins and minerals
The process by which the body breaks down foods into molecules small enough to be absorbed or excretes the waste
Digestive process
Set of recommended intakes for each nutrient published by the institute of medicine
Dietary reference intakes (DRIs)
Daily nutrient intake levels meeting the nutritional needs of 97 to 98 percent of healthy individuals
Recommended Dietary Allowances (RDAs)
Daily intake levels assumed to be adequate for most healthy people. These are used when there isn’t enough research to support establishing an RDA
Adequate Intakes (AIs)
The highest amounts of a nutrient that an individual can consume daily without risking adverse health effects
Tolerable upper intake levels (ULs)
Ranges of protein, carbohydrates, and fat intake that provide adequate nutrition, and they are associated with a reduced risk for chronic disease; usually expressed as percentages
Acceptable Macronutrient Distribution Ranges (AMDRs)
A unit of measure that indicates the amount of energy obtained from a particular food
Calorie
A state of abnormal depletion of body fluids, can develop within a singe day, especially in a hot climate
Dehydration
Hyponatremia
Too much water can pose a serious risk to your health and is characterized by low sodium levels