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Nutrition for Non-Majors
Nutrition for Non-Majors
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Undergraduate 2
05/07/2008

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Term
nutrition
Definition
study of food, including how food nourishes our bodies and how food influences our health; critical components: nutrition and physical activity
Term
wellness
Definition
absence of disease: physical, emotional and spiritual health
Term
nutrients
Definition
the chemicals in foods that are critical to human growth and function
Term
macro-nutrients
Definition
nutrients required in relatively large amounts; provide energy to our bodies; carbs, fats and oils, proteins
Term
micronutrients
Definition
nutrients required in smaller amounts; vitamins and minerals
Term
kilocalories (kcal)
Definition
how we measure energy; amount of energy required to raise the temp of 1g of water by 1 degree C
Term
Dietary Reference Intakes (DRIs)
Definition
updated nutritional standards; expanded on traditional RDA values; set standards for nutrients that do not have RDA values
Term
Estimated Average Requirement (EAR)
Definition
average daily intake level of a nutrient that will meet the needs of half of the people in a particular category; used to determine Recommended Dietary Allowance (RDA) of a nutrient
Term
Recommended Dietary Allowances (RDA)
Definition
average daily intake level required to meet the needs of 97-98% of people in a particular category
Term
Adequate Intake (AI)
Definition
Recommended average daily intake level for a nutrient; based on observations and estimates from experiments; Used when RDA is not yet established--calcium, vitamin D, vitamin K, Fluoride
Term
Tolerable Upper Intake Level (UL)
Definition
Highest average daily intake level that is not likely to have adverse effects on the health of most people; consumption of a nutrient at levels above the UL is not considered safe
Term
Estimated Energy Requirement (EER)
Definition
Average dietary energy intake (kcal) to maintain energy balance; based on age, gender, weight, height, level of physical activity
Term
Acceptable macronutrient distribution ranges (AMDR)
Definition
Describes the portion of energy intake that should come from each macronutrient
Term
Healthful Diet
Definition
Adequate, moderate, balanced and varied
Term
Food labels
Definition
required by FDA on most products; includes: statement of identity, net contents oof the package, ingredients list, manufacturer's name and address, nutrition information
Term
nutrition facts panel
Definition
contains the nutrition info required by FDA
Term
percent daily values (%DV)
Definition
how much a serving of food contributes to your total intake of a nutrient; based on 2,000 calories/day; used to determine if a product is low or high in a particular nutrient
Term
dietary guidelines for americans
Definition
general advice for nutrition and health; 30 min/day physical activity, fruits and vegs, high fiber & whole grain foods, limit saturated fats and trans fats, limit sodium intake, moderate alcohol consumption
Term
major causes of death in U.S.
Definition
Poor diet and sedentary lifestyle
Term
MyPyramid
Definition
graphic representation of types and relative quantities of foods for good nutrition; emphasizes physical activity, moderation, personalization, variety and gradual improvement
Term
serving sizes
Definition
there is no standardized definition for a serving size of any food
Term
nutrient dense foods
Definition
relative amount of nutrients per calorie of food; best choice when making choices in each food group
Term
5-A-Day the Color Way Program
Definition
based on evidence linking fruit and vegetable consumption with cancer prevention; recommends minimum of 5 fruits and vegs per day
Term
DASH diet plan
Definition
approach to stop hypertension; limits sodium intake to 3,000 mg/day; has been shown to reduce blood pressure
Term
exchange system
Definition
designed for people with diabetes; 6 food groups or exchange lists; food is grouped in an exchange list based on its content of calories, carbs, protein and fat
Term
eating out
Definition
avoid breaded or fried foods, order salad instead of soup, ask for steamed veg, substitute veg for potatoes or rice, avoid cream or cheese sauces, order small portions
Term
food provides us with
Definition
energy for body processes, heat for body temperatur regulation, building blocks for growth and maintenance of body tissues
Term
appetite
Definition
psychological desire to eat certain foods
Term
hunger
Definition
physiological sensation that prompts us to eat
Term
satiety
Definition
the feeling of being full
Term
blood glucose levels
Definition
trigger the release of hormones called insuline and glucagon to prompt us to eat
Term
hormones
Definition
chemicals produced in specialized glands that travel in the bloodstream to target organs in other parts of the body; some simulate food intake; some produce a feeling of satiety
Term
highest satiety value
Definition
proteins
Term
goals of digest
Definition
break down carbs, proteins and fats into smaller molecules; absorb smaller molecules into the cells of the body
Term
molecules
Definition
building blocks of cells
Term
cells
Definition
smallest unit of life
Term
3 processes of food we eat
Definition
digestion, absoprtion, elimination
Term
Gastrointestinal (GI) tract
Definition
digestion, absorption, elimination occurs here; series of organs arranged as a long tube; contains stomach and intestines and sphincters
Term
sphincters
Definition
muscles that control the passage of materical from one organ to the next
Term
digestion
Definition
the process of breaking down large food molecules to smaller molecules; begins in the mouth
Term
mechanical digestion
Definition
chewing
Term
epiglottis
Definition
covers the opening to the trachea during swallowing
Term
esophagus
Definition
food travels from the mouth to the stomach through this
Term
peristalsis
Definition
muscular contractions moving food through the GI tract
Term
gastroesophageal sphincter
Definition
separates esophagus from stomach
Term
gastric juice
Definition
hydrochloric acid (HCl), pepsin, gastric lipase and mucus
Term
chyme
Definition
semi-solid product of mechanical and chemical digestion in the stomach; from stomach is slowly released into small intestine through the pyloric sphincter
Term
enzymes
Definition
speed up chemical reactions, lower amount of energy needed for action to proceed, acts on specific purpose, release and activation are controlled by nerves and hormones, only released when needed
Term
bile
Definition
produced by liver and emulsifies fats
Term
gall bladder
Definition
stores bile
Term
absoprtion
Definition
process of taking molecules across a cell membrane and into cells of the body
Term
small intestine
Definition
where 95% of digestion and absorption of nutrients takes place
Term
large intestine
Definition
very little digestion takes place here; water and some nutrients are absorbed
Term
heartburn
Definition
caused by hydrochloric acid in the esophagus
Term
gastroesophageal reflux disease (GERD)
Definition
painful, persistent heartburn
Term
peptic ulcers
Definition
regions of the GI tract that have been eroded by HCL and pepsin
Term
celiac disease
Definition
complete intolerance for gluten; can damage small intestion; requires diet lacking wheat, rye, barley; may be genetic disease
Term
Irritable bowel syndrom (IBS)
Definition
disorder that interferes with normal colon function; abdominal cramps and bloating; diarrhea or constipation; more common in women than men
Term
constipation
Definition
slows movement of fecal matter; results from ignoring normal urge, antacids, calcium and iron supplements; treatment: plenty of dietary FIBER and fluids, laxatives
Term
hemorrhoids
Definition
swollen veins of the rectum and anus; caused by stress and pressure to vessels; treatment: warm compresses and FIBER and fluids
Term
diarrhea
Definition
can lead to severe dehydration; more dangerous for children and the elderly
Term
carbohydrates
Definition
one of 3 macronutrients; primary energy source; composed of carbon, hydrogen and oxygen; FRUITS AND VEGS
Term
Glucose
Definition
most abundant carb; produced by plants through photosynthesis
Term
simple carbs
Definition
contains 1 or 2 molecules; monosaccharides contain only one molecule; disaccharides contain two molecules
Term
complex carbs
Definition
long chains of glucose molecules; hundreds to thousands of molecules long; polysaccharides; STARCH, GLYCOGEN, MOST FIBERS
Term
starch
Definition
found in plants; broken down into glucose; GRAINS, LEGUMES, TUBERS
Term
glycogen
Definition
found in animals; stored in liver and muscles; Not found in food so are not a dietary carb
Term
dietary fiber
Definition
non-digestible part of plants; GRAINS, RICE, SEEDS, LEGUMES, FRUITS
Term
functional fiber
Definition
carb extracted from plants and added to food; CELLULOSE, GUAR GUM, PECTIN, PSYLLIUM
Term
total fiber
Definition
dietary+functional
Term
salivary amylase
Definition
enzyme that begins carb digestion in mouth; breaks carbs down into MALTOSE
Term
pancreatic amylase
Definition
enzyme produced in pancrease and secreted into small intestine; digests carbs down to maltose
Term
excess glucose
Definition
converted to glycogen by the liver
Term
primary energy source
Definition
glucose circulating in the blood
Term
enzymes necessary to digest fiber
Definition
we do not have
Term
insulin
Definition
produced by beta cells of pancreas; helps cells take in glucose from blood; stimulates liver to take up glucose and convert to glycogen
Term
glucagon
Definition
produced by alpha cells of pancrease; stimulates breakdown of glycogen to glucose; stimulates gluconeogenesis
Term
glycemic index
Definition
food's ability to raise blood glucose levels
Term
low glycemic index
Definition
better for people with diabetes; generall high in fiber; may reduce risk of heart disease and colon cancer
Term
fiber
Definition
may reduce risk of colon cancer; reduce risk of heart disease; enhance weight loss; prevent hemorrhoids, constipation and diverticulosis; most americans eat only HALF of the recommended amounts
Term
diabetes
Definition
inability to regulate blood glucose levels; untreated may cause nerve damage, kidney damage, blindness and can be fatal
Term
type 1 diabetes
Definition
accounts for 10% of all cases; do not produce ENOUGH insulin; causes hyperglycemia; requires insulin injections; may be autoimmune disease
Term
type 2 diabetes
Definition
most have this type; body cells are insensitive or unresponsive to insulin; EXCESSIVE insulin in often produced; causes hyperglycemia because cells cannot take in the glucose from the blood
Term
type 2 diabetes causes
Definition
unclear but genetics, obesity and physical inactivity play a role; treated with diet and exercise, healthy lifestyle choices may prevent or delay onset
Term
hypoglycemia
Definition
low blood sugar (glucose)
Term
lactose intolerance
Definition
insufficient lactase production causes inability to digest lactose found in dairy products; symptoms include intestinal gas, bloating, nausea, cramping, diarrhea
Term
fats
Definition
one type of lipid; provide flavor and texture to foods; more energy dense than carbs or proteins; take longer to digest
Term
lipids
Definition
diverse class of molecules that are insoluble in water
Term
triglycerides
Definition
composed of 3 fatty acid molecules and one glycerol molecule
Term
fatty acids
Definition
long chains of carbon atoms surrounded by hydrogen atoms; can differ in legnth, level of saturation and shape
Term
glycerol
Definition
3-carbon alcohol that is the backbone of a triglyceride
Term
saturation
Definition
refers to how many hydrogen atoms surround each carbon
Term
saturated fatty acids
Definition
pack tightly together and are SOLID at room temp; ANIMAL FATS, BUTTER AND LARD
Term
unsaturated fatty acids
Definition
do not stack together well and are LIQUID at room temp; PLANT OILS
Term
hydrogenation
Definition
addition of hydrogen atoms to unsaturated fatty acids
Term
phospholipids
Definition
composed of glycerol backbone, 2 fatty acids and phosphate; SOLUBLE in water; not required in our diet because they are created in our bodies
Term
sterols
Definition
lipids containing multiple rings of carbon atoms; not required in our diet bc they are created in our bodies
Term
chylomicron
Definition
lipoprotein produced by cells lining the small intestine
Term
fat
Definition
very energy dense; much of energy used during rest and exercise comes from this
Term
alpha-linoleic acid (omega-3 fatty acid)
Definition
VEGETABLES, FISH AND FISH OILS
Term
linoleic acid (omega-6 fatty acid)
Definition
VEGETABLE AND NUT OILS
Term
visible fats
Definition
fats knowingly added to foods; BUTTER, CREAM, MAYONNAISE, DRESSINGS
Term
invisible fats
Definition
fats hidden in foods; naturally occuring or added during processing
Term
cardiovascular disease
Definition
dysfunction of heart or blood vessels; can result in stroke or heart attack; can result from being overweight, physical inactivity, smoking, high blood pressure, diabetes
Term
essential amino acids
Definition
body cannot make them at all or cannot make them in sufficient amounts to meet physiological needs; MUST BE SUPPLIED BY DIET
Term
peptide bond
Definition
formed when 2 amino acids are joined together through a condesation reaction
Term
proteins
Definition
support growth and maintenance of body tissues; function as enzymes; maintenance of fluid and electrolyte balance; regulation of acid-base balance; serve as antibodies; function as transport proteins; function as hormones; serve as energy source
Term
dietary protein
Definition
provide amino acids that can be used by all the cells of the body
Term
complete protein
Definition
a dietary protein with all of the essential amino acids in similar amounts as our body requires for synthesis of body proteins; ANIMAL FOODS--MEAT, MILK, EGGS
Term
incomplete protein
Definition
dietary protein lacking, or low, in one or more of the essential AA relative to the needs of the human body; PLANT PROTEINS
Term
protein-energy malnutrition
Definition
most common form of malnutrition in the world; strikes often in early childhood
Term
maasmus
Definition
severe deficit of both protein and food energy over long period; severe wasting; impairs brain development and learning ability
Term
kwashiorkor
Definition
severe protein deficit that provides "adequate" food energy; abdominal swelling
Term
fluids
Definition
substances composed of freely moving molecules; have the ability to conform to shape of container; have an overall NEUTRAL charge due to balances between electrolytes
Term
electrolytes
Definition
mineral salts dissolved in water: sodium, potassium, chloride, phosphorus
Term
thirst mechanism
Definition
increased by salt and other dissolved substances in our blood; reduction in blood volume; dryness in the mouth and throat
Term
water
Definition
lost through urine (most), sweat, exhalation, feces; gained through beverages, food, and metabolic reactions
Term
sodium
Definition
PROCESSED FOODS
Term
hypernatremia
Definition
abnormally HIGH blood sodium concentration; patients with congestive heart failure or kidney disease; results in high blood volume, edema and high blood pressure
Term
hyponatremia
Definition
abnormally LOW blood sodium level; result from prolonged vomiting, diarrhea or sweating; marathon runners who consume too much water
Term
Potassium
Definition
FRESH FRUIT, VEG, WHOLE GRAINS
Term
hyperkalemia
Definition
high blood potassium level; patients with kidney disease; alters normal heart rhythm resulting in heart attack
Term
hypokalemia
Definition
LOW blood potassium levels; patients with kidney diease or diabetic acidosis; when taking certain diuretic medications
Term
phosphorus
Definition
MEAT, MILK, EGGS, SOFT DRINKS
Term
antioxidants
Definition
chemicals that protect cells from damage from oxidation; vitamins E, C, A, beta-carotene and selenium
Term
oxidation
Definition
loss of electrons from a molecule; stable atoms contain an even number of paired electrons
Term
reduction
Definition
gain of electrons by a molecule;
Term
free radical
Definition
atom that has lost an electron and is left with an unpaired electron; high reactive and can cause damage to molecules in the cell; produced by pollution, ultraviolet light, toxic substances, radiation exposure, cigarette smoke, asbestos
Term
diseases related to free radical production
Definition
cancer, heart disease, diabetes, arthritis, cataracts, kidney disease, Alzheimer's, Parkinson's
Term
vitamin E
Definition
VEGETABLE OILS, NUTS, SEEDS, WHEAT GERM, SOYBEANS
Term
vitamin C
Definition
FRESH FRUITS AND VEGETABLES
Term
BETA-CAROTENE
Definition
FRUITS AND VEGETABLES THAT ARE RED, ORANGE, YELLOW AND DEEP GREEN
Term
VITAMIN A
Definition
LIVER, EGGS, DARK GREEN, ORANGE AND YELLOW FRUITS AND VEGETABLES
Term
SELENIUM
Definition
ORGAN MEATS, PORK, SEAFOOD, NUTS, WHEAT, RICE
Term
cofactor
Definition
compound needed for proper functioning of an enzyme; COPPER, ZINC AND MANGANESE
Term
cancer
Definition
group of related diseases characterized by cells growing out of control; initiation, promotion, progression; increased by tobacco use, sun exposure, nutrition, environment/occupational exposure, low level of physical activity; antioxidants and phytochemicals help reduce risks
Term
cardiovascular disease (CVD)
Definition
leading cause of death; includes heart disease, hypertension, atherosclerosis
Term
bone structure
Definition
provides strength to support the body, allows for flexibility, contains 65% minerals providing the hardness of bone, contains 35% organic structures for strenght, durability and flexibility
Term
collagen
Definition
fibrous protein in bone tissue
Term
cortical bone (compact bone)
Definition
very dense tissue making up 80% of skeleton
Term
trabecular bone (spongy bone)
Definition
"scaffolding" on the inside of bones; supports cortical bone and makes up 20% of skeleton
Term
osteoclasts
Definition
cells that erode the surface of bones
Term
osteoblasts
Definition
produce the collagen-containing component of bone
Term
calcium
Definition
most abundant major mineral in body; forms and maintains bones and teeth, assists with acid-base balance, transmission of nerve impulses, assist in muscle contraction; SKIM MILK, LOW-FAT CHEESE, NONFAT YOGURT, GREEN LEAFY VEGETABLES
Term
vitamin D
Definition
most foods contain very little, obtained from FORTIFIED FOODS--MILK, SUN, FORTIFIED SOY PRODUCTS OR SUPPLEMENTS; rickets occurs in children who don't consume enough
Term
vitamin K
Definition
GREEN LEAFY VEGETABLES, VEGETABLE OILS
Term
MAGNESIUM
Definition
50-60% found in BONES; GREEN LEAFY VEGETABLES, WHOLE GRAINS, SEEDS, NUTS, SEAFOOD, BEANS, SOME DAIRY
Term
fluoride
Definition
99% found in TEETH AND BONES; FLOURIDATED DENTAL PRODUCTS AND FLOURIDATED WATER
Term
osteopororis
Definition
low bone mass, deterioration of bone tissue, fragile bones leading to bone fractures, compaction of bone (decreased height), shortening and hunching of spine; NO CURE
Term
paget's disease
Definition
excessive breakdown and formation of bone causes bones to enlarge, weaken, deform and fracture
Term
vitamins and minerals
Definition
required for proper metabolism, do NOT directly provide energy, necessary for obtaining energry from macronutrients, often function as coenzymes
Term
enzymes
Definition
protein the accelerates the rate of a chemical reaction; required for all metabolic reactions
Term
coenzymes
Definition
molecule that combines with an enzyme to facilitate enzyme functions; some metabolic reactions require coenzymes
Term
B-complex vitamins
Definition
especially important for energy metabolism and essential in metabolism; thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, pantothenic acid, biotin
Term
thiamin
Definition
ENRICHED FOODS AND WHOLE GRAINS
Term
beriberi
Definition
deficiency of thiamin resulting in muscle wasting and nerve damage
Term
riboflavin (vitamin B2)
Definition
MILK
Term
ariboflavinosis
Definition
riboflavin deficiency; sore throat, swollen mucous membranes
Term
niacin
Definition
MEAT, FISH, POULTRY, ENRICHED BREAD PRODCUTS
Term
pellagra
Definition
severe niacin deficiency
Term
vitamin B6
Definition
ENRICHED CEREALS, MEAT, FISH, POULTRY, STARCHY VEGETABLES
Term
folate
Definition
READY-TO-EAT CEREALS, ENRICHED BREAD PRODUCTS
Term
VITAMIN B12
Definition
ONLY IN ANIMAL-BASED FOODS
Term
PANTOTHENIC ACID
Definition
CHICKEN, BEEF, EGG YOLK, POTATOES, OAT CEREALS, TOMATO PRODUCTS
Term
BIOTIN
Definition
VERY FEW FOODS
Term
CHOLINE
Definition
Vitamin-like substance; MILK, LIVER, EGGS, PEANUTS
Term
IODINE
Definition
Trace mineral; SALTWATER FISH, SHRIMP, IODIZED SALT, MILK, DAIRY PRODUCTS
Term
GOITER
Definition
enlarged thyroid from EXCESS IODINE
Term
chromium
Definition
trace mineral; MUSHROOMS, PRUNES, DARK CHOCOLATE, NUTS, WHOLE GRAINS
Term
MANGANESE
Definition
Trace mineral; WHOLE-GRAIN FOODS, BROWN RICE, PINEAPPLE, PINE NUTS, OKRA, SPINACH
Term
trace minerals
Definition
manganese, chromium, iodine, iron, zinc, copper
Term
sulfur
Definition
major mineral required for detoxification of alcohol and drugs by the liver; FOUND IN FEW AMINO ACIDS
Term
blood
Definition
only fluid tissue in the body; transportation of oxygen and nutrients to cells, removal of wastes from tissues
Term
erythrocytes
Definition
RED BLOOD CELLS for transporting oxygen through body
Term
leukocytes
Definition
WHITE BLOOD CELLS of the immune system
Term
platelets
Definition
cell fragments that assist in blood clotting
Term
plasma
Definition
fluid portion of blood
Term
iron
Definition
trace mineral; MEAT, POULTRY, FISH, CLAMS, OYSTERS, ENRICHED CEREALS AND BREADS
Term
heme iron
Definition
found in ANIMAL BASED FOODS and MORE absorable
Term
non-heme iron
Definition
NOT EASILY ABSORBED
Term
IRON OVERDOSE
Definition
most common cause of poisoning deaths in children; nausea, vomiting, diarrhea, dizziness, confusion
Term
iron deficiency
Definition
most common nutrient deficiency in the world; high risk for infants, young children, preadolescent girls, premenopausal women and pregnant women
Term
zinc
Definition
trace mineral; RED MEATS, SOME SEAFOOD, WHOLE GRAINS, ENRICHED GRAINS AND CEREALS
Term
COPPER
Definition
Trace mineral; ORGAN MEATS, SEAFOOD, NUTS, SEEDS, WHOLE GRAIN FOODS
Term
neural tube defects
Definition
result from lack of folate in women who are pregnant or looking to get pregnant; effects embryo in first few weeks; adequate folate is 400 mg daily
Term
anemia
Definition
"without blood;" any condition of low hemoglobin levels
Term
healthful weight
Definition
appropriate for your age, maintained without constant dieting, acceptable to you, based on family history of body shape and weight, promotes good eating habits and allows for regular physical activity
Term
underweight
Definition
having too little body fat to maintain health; BMI LESS than 19.5
Term
overweight
Definition
having a moderate amount of excess body fat; BMI 25-29.9
Term
Obese
Definition
having an excess of body fat that adversely affects health; BMI GREATER THAN 30
Term
morbid obesity
Definition
body weight exceeding 100% of normal, creating a very high risk for serious health complications
Term
determining if a person's body weight is healthful should include
Definition
determining body mass index (BMI), measuring body composition, assessing the pattern of fat distribution
Term
body mass index (BMI)
Definition
expresses the ratio of a person's weight to the square of their height; below 18.5 or above 30 is BAD
Term
body composition
Definition
measurement of body fat and lean muscle mass; measured by underwater weight, skinfold measurements, bioelectric impedance analysis, near infrared reactance, bod pod
Term
fat distribution pattern
Definition
measured by waist-to-hip ratio and waist circumference; apple-shaped fat patterning=BAD; pear-shaped=NO RISK
Term
energy balance
Definition
occurs when energy intake = energy expenditure
Term
basal metabolic rate (BMR)
Definition
energy expended to maintain basal, or resting, functions of the body; decreases with age; more lean tissue increases your BMR
Term
total energy expenditure
Definition
basal metabolic rate + thermic effect of food + energy expended in physical activity
Term
thrifty gene theory
Definition
proposes that a gene causes people to be energetically thrify; people with this gene expend less energy and therefore gain weight
Term
set-point theory
Definition
proposes that each person's weight stays within a small range (set point)
Term
leptin theory
Definition
leptin is a hormon produced by fat cells that causes reduced food intake, reduced weight, decreased body fat
Term
physical activity
Definition
any muscle movement that increases energy expenditure
Term
leisure time physical activity
Definition
any activity unrelated to a person's occupation; hiking, walking, biking; includes exercise
Term
exercise
Definition
purposeful, planned physical activity
Term
physical fitness
Definition
state of being created by the interaction between nutrition and physical activity; cardiorespiratory fitness, musculoskeletal fitness, flexibility, body composition
Term
26%
Definition
U.S. adults admit to no leisure time physical activity at all
Term
more than half
Definition
of all U.S. adults do not do sufficient physical activity
Term
less than 30%
Definition
of high school students participate in daily physical education
Term
sound fitness program
Definition
meets your personal goals, is fun, includes variety and consistency, appropriately overloads the body, includes a warm-up and cool-down period
Term
overload principle
Definition
additional physical demands on the body to improve fitness; too much physical exertion is NOT recommended
Term
FIT Principle
Definition
frequency, intensity, time of activity
Term
frequency
Definition
varies with fitness goals
Term
intensity
Definition
may be based on maximal heart rate
Term
time of activity
Definition
whether the total activity time is an accumulation of activites or completed all at once
Term
aerobic
Definition
requiring oxygen; builds cardiovascular endurance
Term
anaerobic
Definition
not requiring oxygen; produces less of an improvement in cardio vascular endurance; primarily develops muscle strenght and bulk by developing lean tissue mass; all-out exertion of muscles for 90 seconds or less--lifting weights, sprinting
Term
adenosine trphosphate (ATP)
Definition
the energy carrying molecule in the body; must be generated continuously since muscles store only enough for 1-3 seconds of activity; fuel for physical activity
Term
creatine phosphate (CR)
Definition
stores some energy that can be used to make ATP; stores enough energy for 3 to 15 seconds of maximal physical effort
Term
glucose
Definition
primary carb used to generate ATP
Term
nutrient dense foods
Definition
best sources of vitamins and minerals
Term
female athlete triad
Definition
disordered eating, amenorrhea (no period), osteopororsis
Term
any other nutrient
Definition
need for water during exercise far surpasses that for

2 or more liters per hour
Term
delayed
Definition
during physical activity the thirst sensation is...
Term
heat exhaustion
Definition
heat stress causes loss of body fluid and then depletion of blood volume
Term
heat cramps
Definition
frequent complication of heat exhaustion--should not be confused with muscle cramps
Term
heatstroke
Definition
occurs when internal body temp reaches 105 degrees Fahrenheit. Symptoms: nausea, confusion, irritability and coma in severe cases
Term
foods rich in complex carbohydrates
Definition
GRAINS, BREADS, PASTAS, STARCHY VEGETABLES AND LEGUMES
Term
ergonomic aids
Definition
substances used to improve exercise and athletic performance; not effective, dangerous, reliable research on these products is hard to find
Term
teratogens
Definition
substances that cause birth defects; includes alcohol and illegal drugs
Term
full term pregnancy
Definition
38-42 weeks
Term
1st trimester
Definition
conception to 13th week
Term
2nd trimester
Definition
14th to 27th week
Term
3rd trimester
Definition
28th to 40th week
Term
embryonic stage
Definition
day 15 to 8th week
Term
fetus
Definition
after 8th week baby is called...
Term
2nd trimester
Definition
continued development of organ systems, growth from 3 inches to over a foot long by the end of trimester
Term
3rd trimester
Definition
time of considerable growth; fetus gains 3/4 of its weight; brain growth is extensive; lungs become fully mature; a balances, adequate diet for the mother is essential during this time
Term
low birth weight
Definition
any baby born weighing less than 5.5. pounds; increased risk of infections, learning disabilities, impaired physical development and death in 1st year
Term
preterm babies
Definition
born before 38 weeks and may be low-birth weight babies
Term
fat
Definition
required by the newborn for temperature regulation and as an energy source; percentage of calories gained from ___ should not change during pregnancy
Term
neural tube
Definition
becomes the brain and spinal cord and required folate in the first 28 days for development
Term
iron-deficient anemia
Definition
fetus will take iron from mother causing
Term
nutrition-related problems during pregnancy
Definition
morning sickness, cravings and aversions, heartburn, constipation and hemorrhoids, gestational diabetes, preeclampsia
Term
morning sickness
Definition
nausea and vomiting associated with pregnancy; can occur at any time; may begin after 1st missed period and last 12 to 16 weeks; no cure
Term
pica
Definition
craving a non-food item (ice, clay)
Term
heartburn
Definition
occurs when the sphincter above the stomach relaxes, allowing stomach acid into the esophagus; increased during pregnancy
Term
gestational diabetes
Definition
insufficient insulin production or insulin resistance that increases blood glucose levels during pregnancy; condition resolves after birth occurs; risk of delivering a large baby; may lead to preeclampsia
Term
preeclampsia
Definition
pregnancy-induced hypertension; can be fatal is untreated; only cure is childbirth; manage blood pressure and bed rest
Term
fetal alcohol syndrome (FAS)
Definition
variety of characteristis associated with prenatal exposure to high quantities of alcohol; results in malformations of face, limbs and heart and many developmental disabilities
Term
lactation
Definition
production of breast milk
Term
prolactin
Definition
hormone responsible for the synthesis of milk; produced toward the end of pregnancy; suppressed by estrogen and progesterone until childbirth
Term
colostrum
Definition
first milk produced; rich in proteins, anitbodies, vitamins and minerals
Term
benefits of breast feeding for mother
Definition
high quality nutrition, protection from allergies and infections, suppressing ovulation, opportunity for bonding, convenient and cost efficient
Term
benefits of breast feeding for infant
Definition
emotional bonding, sensory stimulation, tailored to meet nutritional needs of the infant
Term
suckling
Definition
effect tooth and jaw alignment; less likely to be overfed; lower incidence of allergic reactions and infections
Term
1st year
Definition
baby's organs are developing, nervous system continues to develop, typically grow 10 inches in length and TRIPLE their weight
Term
first 2 years
Definition
World Health Organization (WHO) recommends breastfeeding for at least the...
Term
4 to 6 months and when they can hold their head up
Definition
breast milk or formula should be supplemented with solid food beginning...
Term
infants should not eat
Definition
corn syrup or honey, goat's milk, cow's milk, large quantities of fruit juice, too much salt or sugar, too much breast milk or formula
Term
colic
Definition
uncontrollable crying that can last for hours; precise cause is unknown
Term
6 months
Definition
infants are born with enough iron for only...

anemia can develop after that time
Term
nursing bottle syndrome
Definition
leaving an infant alone with a bottle can lead to cavities and tooth decay; begin using a cup by 8 months and no bottle after 18 months
Term
lead poisoning
Definition
especially toxic to infants since the brain and nervous system are still developing; results in reduced mental capacity, behavioral problems, impaired growth; allow tap water to run a minute before use
Term
age 1 to 3 years
Definition
rapid growth rate of infancy begins to slow; gain 5.5 to 7.5 inches and 9-11 pounds; higer energy expended for increased activity level
Term
age 4 to 5
Definition
growth rate continues to slow; will gain 3-4 inches and 5-6 pounds per year
Term
childhood overweight
Definition
BMI in 85th percentile
Term
childhood obseity
Definition
BMI in the 95th percentile
Term
age 6 to 13 years
Definition
growth is slow and steady--2 to 3 inches per year; begin to make their own food choices; activity levels vary
Term
age 14 to 18 years
Definition
growth spurts begin at age 10 to 11 for girls and 12 to 13 for boys; average 20-25% increase in height is expected; weight and body composition also change
Term
65 years and older
Definition
decreased muscle and lean tissue, increased fat mass, decreased bone density, decreased immune function, impaired absorption of nutrients
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