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5 reasons why we eat what we eat
Personal preference, habit, ethnic heritage or tradition, social interactions, availability/convenience/ economy
Functional foods
foods that have a potentially beneficial effect on health when consumed as part of a varied diet on a regular basis at effective levels
phytochemicals
non nutrient compounds found in plants. some phytochemical have biological activity in the body.
energy
the capacity to do work. The energy in food is chemical energy. The body can convert this chemical energy to mechanical, electrical, or heat energy
nutrients
chemical substances obtained from food and used in the body to provide energy, structural materials, and regulating gents to support growth, maintenance, and repair of the body's tissues. Nutrients may also reduce the risks of some diseases.
inorganic
not containing carbon or pertaining to living organisms. The two classes of nutrients that are inorganic are minerals and water
organic
in chem, substances or molecules containing carbon-carbon bonds or carbon-hydrogen bones that are characteristic of living organisms. The four classes of nutrients that are organic are carbohydrates, lipids, proteins, and vitamins
essential nutrients
nutrients a person must obtain from food because the body cannot make them for itself in sufficient quantity to meet physiological needs; also called indispensable nutrients. About 40 nutrients are currently know to be essential for human beings.
ethnic foods
food associated with particular culture
cultural competence
having an awareness and acceptance of cultures and the ability to interact effectively with people of diverse cultures
functional food
foods that have a potentially beneficial effect on health when consumed as part of a varied diet on a regular basis at effective levels
photochemicals
nonutreint compounds found in plants. Some phytochemical have biological activity in the body.
energy
the capacity to do work. The energy in food is chemical energy. The body can convert this chemical energy to mechanical, electrical, or heat energy
nutreints
chemical substances obtained from food and used in the body to provide energy, structural materials, and regulating agents to support growth, maintenance , and repair of the body's tissues. Nutrients may also reduce the risk of some diseases.
inorganic
not containing carbon or pertaining to living organisms. The two classics of nutrients that are inorganic are minerals and water
organic
in chem, substances or molecules containing carbon-carbon bones are carbon-hydrogen bonds that are characteristics of living organisms. the four classes of nutrients that are organic are carbohydrates, lipids, proteins, and vitamins
essential nutreints
nutrients a person must obtain from food because the body cannot make them for itself in he sufficient quantity to meet physiological needs, also called indispensable nutrients
energy yielding nutrients
the nutrients that break down to yield energy the body can use
-carbohydrates
-fat
- protien
calories
a measure of heat. energy needed to raise 1 g of water 1 degree celsius. energy from food is measured in Kcals
energy density
a measure of the energy a food provides relative to the weight of the food (kcalroies per gram)
yields 4 kcals/g
carbohydrates
yields 9kcals/g
fats
yields 4kcal/g
protien
vitamins
organic essential nutrients required in small amount by the body for health
minerals
inorganic elements, Some minerals are essential nutrients required in small amounts by the body for health
genome
the complete set of genetic material (DNA) in an organism or a cell. The study of genomes is called geonomics
nutritional genomics
the science of how nutrients affect the activities of genes (nutrigenomics) and how genes affect the interactions between diet and disease (nutrigenetics)
anecdote
personal account of an experience or event
Dietary reference intake
a set of nutrient intake values for healthy people in the united states and Canada. These values are used for planning and assessing diets and include
-estimated average requirements (EAR)
-Recommended Dietary Allowances (RDA)
-Adequate intakes (AI)
- tolerable upper intake levels (UL)
requirement
the lowest continuing intake of nutrient that will maintain a specified criterion of adequacy
Estimated Average Requirement (EAR)
teh average dialy amount of a nutrient that will maintain a specific biochemical or physiological function in half the healthy people of a given age and gender group
Recommended Dietary Allowance (RDA)
the average daily amount of nutrient considered adequate to meet the known nutrient needs of practically all healthy people; a goal for dietary intake by individuals
deficient
inadequate, a nutrient amount that fails to meet the body's needs and eventually results in deficiency symptoms
Adequate intake (AI)
The average daily amount of a nutrient that appears sufficient to maintain a specified criterion; a value used as a guide for nutrient intake when an RDA cannot be determined
Tolerable Upper Intake level (UL)
the maximum daily amount of a nutrient that appears safe for most healthy people and beyond which there is an increased risk of adverse health affects.
Estimated Energy Requirement (EER)
the average dietary energy intake that maintains energy balance and good health in a person of a given age, gender, weight, and level of physical activity
Acceptable Macronutrient Distribution Ranges (AMDR)
ranges for intakes for the energy nutrients that provide adequate energy and nutrients and reduce the risk of chronic disease
malnutrition
any condition caused by excess or deficient food energy or nutrient intake or by an imbalance of nutrients
undernutrition
deficient energy or nutrients
overnutrition
excess of energy or nutrients
nutrion assessment
a comprehensive analysis of a person's nutrition status that uses health, socioeconomic, drug, and diet histories; anthropometric measurements; physical examinations; and laboratory test
antrhopometrics
relating to the measurement of physical characteristics of the body, such as height and weight
overt
out in the open and easy to observe
primary deficiency
a nutrient deficiency caused by inadequate dietary intake of nutrient
secondary deficiency
a nutrient deficiency caused by something other than an inadequate intake such as disease condition or drug interaction that reduces absorption, accelerates use, hastens exertion, or destroys the nutrient
subclinical deficiency
a deficiency in the early stages, before the outward signs have appeared
covert
hidden, as if under covers
Healthy people
a national public health initiative under the jurisdiction of the US department of Health and Human services (DHHS) that identifies the most significant preventable threats to health and focusses efforts toward eliminating them.
risk factors
a condition or behavior associated with an elevated frequency of a disease but not proved to be causal. Leading risk factors for chronic diseases include obesity, cigarette smoking, high blood pressure, high blood cholesterol, physical inactivity, and a diet high in saturated fats and low in vegetables, fruits, and whole grains
eating pattern
customary intake of foods and beverages over time
adequacy
providing all the essential nutrients, fiber, and energy in amounts sufficient to maintain health
balance
providing foods in proportion to one another and in proportion to the body's needs
kcalorie control
management of food energy intake
nutrient density
a measure of the nutrients of a food provides relative to the energy it provides. The more nutrients and the fewer kcalroies, the higher the nutrient density
empty-kcalorie foods
a popular term used to denote foods that contribute energy but lack protein, vitamins, and minerals
nutrient profiling
ranking foods based on their nutrient composition
moderation
providing enough but not too much of a substance
solid-fats
fats that are not usually liquid at room temperature; commonly found in most foods derived from animals and vegetable oils that have been hydrogenated.
added sugars
sugars and other kcaloric sweeteners that are added to food during processing, preparation, or at the table. Added sugars do not include the naturally occurring sugars found in fruits and milk products.
variety
eating a wide variety selection of food within and among the major food groups
food group plans
diet-planning tools that sort foods into groups based on nutrient content and then specify that people should eat certain amounts of foods from each group
legums
plants of of bean and pea family, with seeds that are rich in protein compared with other plant-derived foods.
discretionary kcalories
the kcalories remaining in a person's energy allowance after consuming enough nutrient-dense food to meet all nutrient needs for a day
serving sizes
the standard quantity of a food; such information allows comparisons when reading food labels and consistency when following the dietary guildlines
portion sizes
the quantity of a food served or eaten at one meal or snack; not a standard amount
Healthy eating index
a measure that assesses how well a diet meets the recommendation of the Dietary Guidelines for Americans
exchange lists
diet-planning tools that organize foods by their proportions of carbohydrates, fat, and protein. Foods on any single list can be used interchangeably.
processed foods
food that have been treated to change their physical, chemical, microbiological, or sensory properties
fortified
the addition to a food of nutrients that were either not originally present or present in insignificant amounts
refined
the process by which the coarse parts of a food are removed. When wheat is refined into flour, the bran, germ, and husk are removed, leaving only the endosperm
enriched
the addition to a food of specific nutrients to replace losses that occur during processing so that the food will meet a specific standard
whole grain
a grain that maintains the same relative proportions of starchy endosperm. germ, and bran as the original
textured vegetable protein
processed soybean protein used in vegetarian products such as soy burgers.
imitation foods
foods that substitute for and resemble another food, but are nutritionally inferior to it.
food substitutes
foods that are designed to replace another food
Daily Values (DV)
reference values developed by the FDA specifically for use on food lables
perfect Daily Values (%DV)
the percentage of a daily value recommendation found in a specified serving of food for key nutrients based on a kcalorie diet.
nutrient claims
statements that characterize the quantity of a nutrient in a food.
health claims
statements that characterize the relationship between a nutrient or other substance in a food and a disease or health-related condition
structure-function claims
statements that characterize the relationship between a nutrient or other substance in a food ad its role in the body
lactovegetarian diet
an eating pattern that includes milk and milk products, but excludes meat, poultry, seafood, and eggs from the diet
lacto-ovo-vegetarian
an eating pattern that includes milk, milk products, and eggs, but excludes meat, poultry, and seafood from the diet
macrobiotic diet
a philosophical eating pattern based on mostly plant foods such as whole grains, legumes, and vegetables, with small amounts of fish, fruits, nuts, and seeds
vegetarian diet
a general term used to describe an eating pattern that excludes meat, poultry, fish and other animal-derived foods from the diet.
vegan
an eating pattern that excludes all animal-derived foods
digestion
the process by which food is broken down into absorbable units
absorption
the uptake of nutrients by the cells of the small intestine for transport into either the blood or the lymph
gastrointestinal (GI) track
the digestive track tract. the principal organs are the stomach and intestines.
digestive system
all the organs and glands associated with the ingestions and digestion of food
bolus
a portion; with respect to food, the amount swolled at one time
chyme
the semiliquid mass of partly digested food expelled by the stomach into the duodenum
peristalsis
wavelike muscular contractions of the GI tract push its contents alon
segmentation
a periodic squeezing or partitioning of the intestine at the intervals
reflux
a backward flow
digestive enzyme
protiens found in the digestive juices that act on food substances, causing them to break down in to simpler compounds
hydrolysis
a chemical reaction in which on molecule is split into two molecules, with hydrogen added to one and a hydroxl to another
bile
an emulsifier that prepares fats and oils for digestion, adn exocrine secretion made by the liver and stored in the gallbladder
emulsifier
a substance with both water-soluble and fat-soluble portions that promotes the mixing of oils and fats in a watery solution.
gastric glands
exocrine glands in the stomach wall that secrete gastric juice in to the stomach
gastric juice
the digestive secretion of the gastric glands of the stomach.