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nutrition test 3
chapters 7.5, 8, 9, and 14?
236
Nutrition
Undergraduate 1
04/03/2013

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Term
folate
Definition
specific genetic variation increases need for
Term
nutrigenomics
Definition
blends the study of human nutrition with genetics
Term
adequate selenium
Definition
lowers risk of certain types of cancer
Term
adequate magnesium
Definition
lowers risk of muscle wasting in older adults
Term
adequate chromium
Definition
lowers risk of type 2 diabetes
Term
adequate calcium
Definition
lowers risk of high blood pressure
Term
adequate vitamin K
Definition
lowers risk of osteoporosis
Term
adequate vitamin E
Definition
lowers risk of complications of diabetes
Term
adequate vitamin D
Definition
lowers risk of colon cancer
Term
adequate vitamin C
Definition
lowers risk of cataracts
Term
healthful diet
Definition
built from wide variety of foods
social, emotional, and other benefits
Term
supplements
Definition
easy to develop toxic overload
can be harmful
Term
chemical transformation
Definition
modified after eaten and absorbed
Term
oxalic acid
Definition
decreases zinc and iron absorption
Term
absorption of vitamins and minerals
Definition
depends on chemical form
binding factors with food
other foods within meal
Term
non-heme
Definition
dietary iron found in plants/animal foods
iron-fortified foods
supplements
Term
heme
Definition
dietary iron in meat/fish/poultry only
Term
trace mineral list
Definition
Se, Fl, I, Cr, Mn, Fe, Zn, Cu
Term
trace minerals
Definition
minerals that require less than 100 mg per day
Term
major mineral list
Definition
Na, K, P, Cl, Ca, Mg, S
Term
major minerals
Definition
minerals that require at least 100 mg per day
Term
minerals
Definition
naturally occurring INORGANIC substances
all are elements
Term
water soluble vitamins
Definition
not stored in large amounts
consumed daily/weekly
quickly cause problems
Term
Vitamin K (names)
Definition
phylloquinone
menaquinone
menadione
Term
Vitamin K use
Definition
coenzyme during production of specific proteins assisting in blood coagulation

A1= 90-120 ug/day
Term
Vitamin E/ tocopherol (RDA intake)
Definition
15 mg/day
Term
Vitamin E/ tocopherol
Definition
antioxidant
cell membranes
fights oxidation
protects white blood cells
immune function
absorption of vitamin A
Term
Vitamin E name
Definition
tocopherol
Term
Vitamin D/ cholecalciferol use
Definition
blood calcium
bone health
cell differentiation

UL= 50 ug/day
Term
vitamin D name
Definition
cholecalciferol
Term
retinol A use
Definition
eyes
sperm/fertilization
bones
immune system

RDA: 700-900 ug/day
Term
Vitamin A name
Definition
retinol
Term
megadosing
Definition
> 10x recommended intake
Term
fat-soluble vitamins
Definition
vitamins A, D, E, and K
readily stored in the body's adipose tissue
toxic when taken in excess
Term
vitamins
Definition
carbon-containing compounds that regulate a wide range of body processes
Term
micronutrients use
Definition
assist body functions
energy production
formation and maintenance of healthy cells and tissues
Term
micronutrients
Definition
vitamins and minerals that are needed in much smaller amounts than macronutrients
Term
inadequate B-vitamin intake
Definition
impacts ability to perform physical activity
poor work performance, low intensity, and duration
diets high in unenriched foods
Term
sulfur
Definition
obtained from dietary proteins
Term
sulfur
Definition
assists in maintaining acid-base balance
Term
sulfur
Definition
regulated by liver for alcohol detoxification
Term
sulfur
Definition
part of amino acids: methionine and cysteine
Term
sulfur
Definition
component of thiamin and biotin
Term
toxicity of manganese
Definition
impairs nervous system, causing spasms/tremors
Term
whole grain foods
Definition
good sources of manganese
Term
manganese
Definition
part of antioxidant superoxide dismutase
Term
manganese
Definition
cofactor in protein, fat, CHO metabolism, glucogeogenesis, cholesterol synthesis, and urea formation
bone matrix synthesis
Term
chromium
Definition
induced in labs
inhibit glucose uptake into cells
cause rise in blood glucose and insulin levels
Term
chromium
Definition
dietary adequecy unknown
widely distributed in foods
high dose safety unknown
Term
chromium
Definition
supports immune function and growth
Term
chromium
Definition
important for RNA and DNA metabolism
Term
chromium
Definition
assists insulin in glucose uptake
Term
hyperthyroidism
Definition
high levels of thyroid hormon because of Graves' disease

weight loss
increase heat production
tremors
nervousness
increase heart beat
protrusion of eyes
Term
hypothyroidism
Definition
decrease in body temperature
cold intolerance
weight gain
fatigue
Term
cretinism
Definition
mental retardation
stunted growth
Term
IDDs (iodine deficiency disorders)
Definition
cretinism, hypothyroidism, hyperthyroidism
Term
goiter
Definition
enlarged thyroid gland

tries to product more hormones so it swells
Term
Iodine problems
Definition
low or excessive intake interferes with thyroid function

goiter
Term
good sources of iodine
Definition
saltwater fish, shrimp, iodized salt, foods with iodized salt
Term
Iodine (RDA intake)
Definition
150 ug/day for adults
Term
iodine
Definition
regulates body temperature and metabolism
important for reproduction and growth
Term
iodine
Definition
component of thyroid hormones
Term
Choline problems
Definition
deficiency: fat accumulation in the liver
Toxicity: excess supplementation= fishy body odor
Term
foods with high Choline
Definition
lecithin, milk, and peanuts
Term
choline
Definition
homocysteine metabolism
Term
choline
Definition
fat and cholesterol metabolism/transport
Term
choline
Definition
vitamin-like substance:
metabolism
cell membrances
neurotransmission
*phosphotidylcholine
*acetylcholine
Term
Biotin deficiency
Definition
becomes bound by certain protein
seen in large consumption of raw egg whites over time
Term
biotin
Definition
content determined for very few foods
Term
biotin
Definition
used in CHO, fat, and protein metabolism
Term
biotin
Definition
pyruvate carboxylase
*pyruvate>oxaloacetate
Term
biotin
Definition
required as a cofactor for carboxylases
Term
biotin
Definition
coenzmes for fatty acid synthesis, gluconeogenesis
Term
pantothenic acid (intake amount)
Definition
5 mg/day for adults
Term
pantothenic acid problems
Definition
no adverse effects from excess amounts
deficiencies are very rare
Term
good sources of pantothenic acid
Definition
chicken, beef, egg yolk, potatoes, oat cereals, tomato products
Term
pantothenic acid
Definition
required for synthesize cholesterol, steroids, and detoxification of drugs
Term
pantothenic acid
Definition
necessary for CoA formation
Term
pantothenic acid
Definition
essential for fatty acid metabolism
Term
Vitamin B6 (pyridoxine) deficiency
Definition
deficiency involves skin, blood, and nerve tissues
*protein metabolism, RBC and neurotransmitter development
Term
toxicity from Vitamin B6 (pyridoxine)
Definition
toxicity from high-dose supplements:
nerve damage
skin lesions
Term
good sources of Vitamin B6 (pyridoxine)
Definition
meat, fish, poultry, enriched cereals, starchy vegetables
Term
Vitamin B6 (pyridoxine)
Definition
necessary for metabolism of homocysteine
Term
Vitamin B6 (pyridoxine)
Definition
coenzyme in amino acid metabolism and gluconeogenesis
*PLP and transanimation
Term
Vitamin B6 (pyridoxine)
Definition
group of three related compounds
Term
Vitamin B6 name
Definition
pyridoxine
Term
3 D's of pellagra
Definition
diarrhea
dermatitis
dementia
Term
Niacin (Vitamin B3) intake amount
Definition
16 mg men
14 mg women
Term
pellagra
Definition
sever niacin deficiency
*three D's
Term
good sources of niacin (vitamin B3)
Definition
meat, fish, poultry, enriched breads and cereals
Term
niacin (vitamin B3)
Definition
can be made from amino acid tryptophan
Term
niacin (vitamin B3)
Definition
required for oxidation-reduction reactions of carbs, proteins, and fats
Term
2 forms of niacin (vitamin B3)
Definition
nicotinic acid and nicotinamide
Term
name of Vitamin B3
Definition
niacin
Term
Riboflavin (vitamin B2)
Definition
part of coenzyme glutathione peroxidase (antioxidant)
Term
Riboflavin (vitamin B2)
Definition
involved in oxidation-reduction reactions
*FAD, FMN
Term
name of Vitamin B2
Definition
riboflavin
Term
good sources of riboflavin (vitamin B2)
Definition
beef, milk, enriched foods, meat
Term
Riboflavin (vitamin B2)
Definition
light sensitive but heat stable vitamin
Term
ariboflavinosis
Definition
riboflavin deficiency
sore throat
swollen mucous membranes
Term
Riboflavin (vitamin B2) intake amount
Definition
1.3 mg/day for men
1.1 mg/day for women
Term
good sources of thiamin (vitamin B1)
Definition
pork products, sunflower seeds, beans, whole or enriched grains
Term
beriberi
Definition
deficiency of B1
muscle wasting
nerve damage
Term
thiamin (vitamin B1)
Definition
assists in production of DNA and RNA and synthesis of neurotransmitter
Term
thiamin (vitamin B1)
Definition
metabolism of CHO and branched-chain amino acids
Term
thiamin (vitamin B1)
Definition
necessary for function of pyruvate dehydrogenase
Term
name of Vitamin B1
Definition
thiamin
Term
Coenzymes that function primarily in energy metabolism
Definition
thiamin
riboflavin
vitamin B6
niacin
pantothenic acid
biotin
Term
folate and B12
Definition
function in cell regeneration and red blood cell synthesis
Term
vitamins and minerals often function as....
Definition
coenzymes
Term
vitamins and minerals
Definition
do not directly provide energy
are needed for generating energy from macronutrients
Term
fluid needs for exercise
Definition
drink freely 24 hr before
drink 2-2.5 cups 2-3 hours before event
drive .5-1 cup every 15 min
Term
fluid needs for average adults
Definition
9 cups/day for women
13 cups/day for men
Term
chocolate milk ratio of CHO: PRO
Definition
3-4: 1
Term
sport drinks
Definition
only if >60 minutes
CHO: 4-8 g/100 ml
PRO: 1.5-2.2g/ 100 ml
3-4:1 CHO: PRO ratio
supply electrolytes
Term
symptoms of dehydration
Definition
decreased performance
increased level in exertion
dark yellow or brown urine color
increase heart rate
decreased appetite
decreased ability to concentrate
decreased urine output
fatigue and weakness
headache and dizziness
Term
hydration rules
Definition
16 oz: 1-2 hours prior
8 oz: every 15-20 minutes of exercise
>24 oz after exercise
Term
blood
Definition
made of water
transports oxygen, carbs, and nutrients to muscles
Term
sweating
Definition
body releasing heat generated by muscles during exercise
Term
post exercise recovery
Definition
Mod to high GI CHO immediately and repeat 2 hours
any form of protein (.5-1 g/kg)
3-4:1 ratio of CHO: PRO
fluid and electrolyte replacement
prepares you for the next workout
Term
PRO after exercise
Definition
essential
10-20 g
consume carbs with your protein
can help raise plasma insulin levels
stimulates protein synthesis and tissue repair
Term
CHO after exercise
Definition
good source within 45 minutes
paired it with proteins

if not: dizziness, fatigue, nausea
Term
high GI foods
Definition
bagel, white rice/pasta/bread, cereal, oatmeal, raisins, potatoes, soda, sports drinks, cookies, candy
Term
moderate GI foods
Definition
whole grain, WW pasta, brown rice, sweet potatoes, bananas, whole grain cereals, fruit juice
Term
low gI foods
Definition
milk, yogurt, cottage cheese, legumes, oats, nuts and seeds, green leafy veggies, squashes
Term
maintenance phase
Definition
consume low GI CHO 2-3x with PRO
2:1 ratio of CHO: PRO
6+ meals of 250-500 kcal
Term
maintenance phase
Definition
1-23 hours post exercise
Term
slow (complete)
Definition
can last up to a couple of days
slows after first the first few hours
Term
fast (partial)
Definition
build new proteins
replenish energy substrates
reestablish optimal fluid and electrolytes
tissue repair
Term
15-30 minutes post exercise
Definition
muscles convert glucose to glycogen up to 3 times faster than at other times
Term
fast recovery
Definition
focus is to shift body from catabolic state to anabolic
Term
fast recovery
Definition
30-45 minutes following exercise
Term
2 phases of recovery nutrition
Definition
fast (partial) and slow (complete)
Term
high intensity exercise
Definition
carbs are primary source for working muscle
Term
endurance exercise
Definition
15-20 minutes, body uses fat as fuel source
Term
trained athletes
Definition
use more fat during standard exercise tasks
Term
result of switching to fat
Definition
decrease intensity of activity
Term
when glycogen runs out
Definition
body shifts to using fat as fuel source
Term
during exercise
Definition
Mod to high GI carbs
protein (6 g)
4:1 CHO: PRO ratio
100:200 kcals/hour
Term
adding protein to a sports drink
Definition
extend endurance
reduce muscle breakdown
speed muscle recovery post exercise
Term
carbs per hour of intense exercise
Definition
30-60 g
150-300 kcal
Term
carbohydrates
Definition
most efficient fuel for the oxygen system
Term
exercise lasting longer than 60 min
Definition
increase carbs and fluid
30-60 g CHO per hour of intense exercise
Term
1 hour prior to event
Definition
blended/liquid meals
50g CHO, 5-10 g PRO
reduced lipolysis/fat ox.
increase reliance on blood glucose
Term
best supplements
Definition
whey, casein, milk, egg proteins
Term
examples of incomplete proteins
Definition
grains, vegetables, fruits
Term
examples of complete proteins
Definition
dairy, eggs, meat, and fish
Term
quality of protein is....
Definition
determined by EAA content
Term
why mostly CHO 3-6 hours prior?
Definition
it maximizes glycogen stores
Term
3-6 hours prior
Definition
mostly CHO
mod to low GI foods
low fat, little fiber, mod PRO
avoid fatty and fried foods
Term
animal foods
Definition
richer in proteins
provide all proteins
most efficient way to get 9 essential amino acids
Term
protein
Definition
not stored in the body for later use
Term
proteins (amino acids)
Definition
not used as a fuel source for exercise
Term
fats
Definition
used for low intensity exercise
Term
carbohydrates
Definition
used for high intensity activity
Term
carbs and fats
Definition
sources of ATP production
Term
body fluids
Definition
liquid portion of cells and tissues
able to move freely and adapt to shapes
Term
body fluids
Definition
about 50-70% of healthy adult body weight
Term
intracellular fluid (ICF)
Definition
within the walls of the cell
Term
2/3 of body fluid
Definition
Intracellular fluid
Term
extracellular fluid (ECF)
Definition
outside of the cell
1/3 of body fluid
Term
interstitial fluid
Definition
between cells that make up a particular tissue or organ
Term
intravascular fluid (plasma)
Definition
water in the blood and lymph
transports blood cells within arteries, veins, and capillaries
Term
fluid composition of tissue varies by: (3)
Definition
tissue type
gender
age
Term
tissue type
Definition
fluid content is higher in lean tissue vs fatty tissue
Term
gender
Definition
males have more lean tissue
Term
age
Definition
decrease in body water results partly from loss of lean tissue as people age
Term
purpose of fluids
Definition
to dissolve and transport substances through the body
Term
excellent solvent
Definition
water dissolves a variety of substances
Term
water-soluble substances that are readily transported in the bloodstream
Definition
amino acids, glucose, vitamins, minerals, medications
Term
proper body fluid levels
Definition
essential for healthful blood volume
Term
blood pressure increases when...
Definition
blood volume rises
Term
kidneys
Definition
help regulate blood volume and blood pressure
Term
Antidiurectic hormone (ADH)
Definition
stimulates the kidneys to reabsorb water and to reduce urine
Term
Renin
Definition
responds to decrease blood pressure and activates renin-angiotensin system
Term
Angiotensinogen II
Definition
constricts the diameter of blood vessels, which increases blood pressure
Term
Aldosterone
Definition
signals kidneys to retain sodium and chloride, which results in the retention of water
Term
functions of body fluids
Definition
helps maintain body temperature
sweating releases heat from the skin and cools the skin and blood
protects and lubricate tissues
Term
electrolytes
Definition
dissolved substances that disassociate in solution into electrically charged particles called ions
Term
Extracellular fluid electrolytes
Definition
sodium and chloride
Term
Intracellular fluid electrolytes
Definition
potassium, phosphorus
Term
cell membranes
Definition
permeable to water
not freely permeable to electrolytes
Term
how does water move
Definition
osmosis
Term
osmotic pressure
Definition
keeps electrolytes from drawing liquid toward them across a semi-permeable membrane
Term
helps regulate fluid balance
Definition
electrolytes
Term
functions of electrolytes
Definition
enables nerves to respond to stimuli
muscle contractions
Term
electrolytes with critical roles
Definition
sodium and potassium
Term
thirst mechanism
Definition
controlled by a cluster of cells in the hypothalamus
prompts us to drink which it is stimulated
Term
how is thirst mechanism stimulated
Definition
increase concentration of salt in the blood
reduction in blood volume and blood pressure
reduced saliva
Term
body gains fluids (3)
Definition
beverages
foods with high water content
metabolic water
Term
sensible water loss
Definition
excretion of urine
sweating
Term
insensible water loss
Definition
skin (not sweating) or lungs during exhalation
Term
significant water loss through...
Definition
illness
injury
exercise
high altitude
pregnancy/breast feeding
diuretics
Term
water
Definition
essential for life
needs vary with gender, age, etc.
Term
if we drink too much water...
Definition
may become overhydrated
dilution of electrolytes
Term
if we dont drink enough water...
Definition
dehydration
leading cause of death around the world
Term
sodium affects
Definition
blood pressure and acid-base balance
nerve impulse transmission
muscle contraction and relaxation
glucose absorption from the small intestine
Term
processed foods are high in
Definition
sodium
Term
excessive intake of sodium may...
Definition
increase urinary calcium excretion in some people
Term
foods high in sodium
Definition
dill pickles, cured hams, chipped beef, tomato juice and sauce, canned cream corn, tomato soup, potato chips, and crackers
Term
Hypernatremia
Definition
abnormally high blood sodium concentration
*patients with congestive heart failure or kidney disease
*effects: adema and high blood pressure
Term
hyponatremia
Definition
abnormally low blood sodium level
from prolonged sweating, vomiting, and diarrhea
Term
potassium
Definition
maintains fluid balance and regulates the contraction of muscles and transmission of nerve impulses
Term
high potassium helps
Definition
maintain a lower blood pressure
Term
sources of potassium
Definition
fresh fruits, vegetables, legumes, and whole grains
Term
Hyperkalemia
Definition
high blood potassium levels
can alter normal heart rhythm
kidney disease
Term
kidney disease (potassium)
Definition
unable to regulate blood potassium levels and should avoid consuming potassium containing salt substitutes
Term
Hypokalemia
Definition
low blood potassium levels
kidney disease or diabetic ketoacidosis
Term
functions of chloride
Definition
aids digestion of HCl in the stomach
assists the immune system and in the transmission of nerve impulses
Term
too much chloride
Definition
hypertension in salt-sensitive individuals
Term
not enough chloride
Definition
occurs in people with severe dehydration, frequent vomiting, and eating disorders
Term
functions of phosphorus
Definition
major intracellular electrolyte
required for fluid balance
critical role in bone formation
activates or deactivates enzymes during phosphorylation
Term
phosphorus' role in bone formation
Definition
Active form of Vitamin D facilitates it's absorption, whereas consumption of aluminum-containing antacids and high doses of calcium carbonate reduce it's absorption
Term
where is phosphorus found?
Definition
found in ATP, DNA, RNA, cell membranes (phospholipids), and lipoproteins
Term
sources of phosphorus in food
Definition
high in foods with protein (meat, milk, eggs)
Term
phosphorus is more readily absorbed from...
Definition
animal sources
Term
phytic acid
Definition
plant storage form
Term
high blood phosphorus
Definition
kidney disease or when taking too much vitamin D from supplements
causes muscle spasms and convulsions
Term
deficiency of phosphorus
Definition
deficiencies are rare
Term
dehydration
Definition
occurs when fluid loss exceeds fluid intake
commonly due to heavy exercise or high environmental temps
Term
who is at risk for dehydration?
Definition
elderly and infants
Term
heatstroke
Definition
failure in the body's heat-regulating mechanisms

hot, humid environments
Term
symptoms of heatstroke
Definition
rapid pulse, hot and dry skin, high body temperature, loss of consciousness
Term
water intoxication
Definition
kidneys retain too much water, causing over-hydration and hyponatremia
Term
hypertension
Definition
major chronic disease where a person is unable to maintain blood pressure in a healthy range

30% of all US adults
Term
"the silent killer"
Definition
often asymptomatic
increases risk of heart disease, stroke, and kidney disease
can reduce brain function, impair physical mobility, and cause death
Term
what causes hypertension?
Definition
primary (or essential) hypertension
secondary
salt sensitivity
Term
primary (essential) hypertension
Definition
unknown cause for 90-95% of hypertension cases
Term
secondary hypertension
Definition
5-10% are caused by kidney disease, sleep apnea, and chronic alcohol abuse
Term
salt sensitivity hypertension
Definition
>50% adults with hypertension
Term
how to reduce hypertension
Definition
increase physical activity and losing weight
reduce alcohol and sodium
eat more whole grains, fruits, vegetables, and low-fat dairy
DASH diet
Term
neuromuscular disorders
Definition
electrolyte imbalances can alter nervous system and muscle function
Term
seizure
Definition
uncontrollable muscle spasms
Term
muscle cramps
Definition
involuntary, spasmodic, and painful muscle contractions
Term
obesity
Definition
popularity of sweetened beverages in US
Term
sweetened beverages
Definition
21% of calories from beverages
apetite not curbed
displace more nutritious beverages such as milk
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