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Nutrition > Quiz 9 (12 + 7) > Flashcards

Quiz 9 (12 + 7) Flashcards

(59 cards)

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1
Q

trace min

A

less than 100mg/ day

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2
Q

heme iron

A

most abundant
animals sources
ex. shellfish, beef, poultry, organ meets
absorb 10%

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3
Q

nonheme iron

A 
converted to ferrous +2 form
from plants
absorb 2-3%
85% dietary Fe
ex. green leafy veg, mushrooms, legumes, enriched grains
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4
Q

nonheme iron bioaval

A

enhance
Vitam C, stomach acid, meat factor

inhibit
binders
phytates (plant based foods, grains)
polyphenols (spinach, tea, coffee)

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5
Q

iron deficiency (molecular)

A

inc. production transport proteins

dec. ferritin production

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6
Q

excessive iron

A

dec productino transport protein

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7
Q

iron in hemoglobin

A

2/3 total body iron

4 protein units, 4 iron heme groups

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8
Q

myoglobin

A

in muscles
heme iron
single heme grp w/ protein subunit
releases o2 to cells for ATP production/ muscle contraction

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9
Q

iron deficiency (in population)

A

common in infants, pregant women, menstrating women, teenagers, growing children

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10
Q

pica (geophagia)

A

eating nonfood substances

dirt and clay

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11
Q

mild fe defic symptoms

A

tired, cold, mental performance dec

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12
Q

fe defic in pregnancy

A

premature delivery, low birth w, maternal mortality

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13
Q

serve iron defic

A 
hypochoromic anemia (pale)
small, pale rbc
not produce heme
dec. o2 carry ability
dec energy
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14
Q

detecting severe iron def

A

hemoglob conc
men < 13 g
women <12 g

hematocrit (% red c vol)
men <39
women< 36

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15
Q

iron toxicity

A

supplemental iron

symptoms- vomiting, diarrhea, constipation, black stool

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16
Q

hemacromatosis

A

iron deposits in liver, heart, muscles
cause- cardiovas dis and death
Fe into blood not regul.

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17
Q

RDA

A 
men- 8mg
women- 18
pregn- 27
UL- 45
vegans *1.8 around 30
   80% higher
    can use B12 supp
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18
Q

athlete RDA

A

70 percent higher

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19
Q

zinc sources

A

red meat, eggs, dairy prod, whole grains

zince animals better than zine plants

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20
Q

zinc phytates

A

inhibit plant absorption of zn

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21
Q

zinc absorption regulated

A 
transport proteins
metallothionein
     bind zinc in mucosal cell
high zinc= inc metallo
 zinc absorp limited
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22
Q

zinc fun

A 
enzyme act
(enzyme superoxide dismutase, DNA, RNA)
carbohy meta
acid-base balance
GENE expression
tissue growth/ repair
dev sex organs/ bone
immune function
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23
Q

zinc def symptoms

A

poor growth, delayed sex maturation, skin changes, hair loss, skel abnormal, depressed immunity

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24
Q

RDA zinc

Study These Flashcards
A

men-11mg

women-8mg

25
excess zinc
stim metalloth syn trap copper in mucosal cells = copper defi
26
zinc and colds
reduce duration of cold symptoms if given w/in 24 hours of onset symptoms
27
selenium sources
seafood, eggs, organ meats
28
se and plants
Se amnt depends on soil
29
Se fun
protects against ox damage (gluthathione peroxidase)
30
gluthathione peroxidase
destroys peroxides before make free radicals
31
severe Se def
common in regions low soil Se and limited diets China- contributes to Keshan dis (heart condition) inc risk of cancer
32
Se RDA
adults- 55
33
high Se intake
5 mg/day changes fingernails inc hair loss
34
Se suppl. warnings
claims- protect against environ pollutants, prevent cancer/ heart dis, slow aging process, improve imm. func. if exceed RDA reccom. not benefitical anymore and can cause adverse effects
35
Iodine sources
seafood, food grown near sea, iodized salt
36
iodine and thyroid horm
apart of thyroid horm | promote protein syn, regul BMR, growth/ dev
37
iodine defic
enlarge thyroid gland w/ contin release thyroid-stim horm = forms goiter
38
iodine defi in pregnancy
cretinism | growth failure, dev disability
39
iodine def in childhood
impair cog fun
40
iodine def. world wide
still a problem | iodized salt has fixed US
41
iodine RDA
adults 150ug
42
iodine toxicity
acute- occur w/ large doses | high intake- cause thyroid enlargement (resembles goiter)
43
iodine toxicity
acute- occur w/ large doses | high intake- cause thyroid enlargement (resembles goiter)
44
normal eating
influec by hunger/ prefer | no shame
45
disordered eating
influe by weight or body type | feel guilt when eat "unhealthy"
46
eating disordered
every food influe by restrictions, weight, purging/binging beh fell guilt all time
47
eating patterns
can flucuate away from normal but come back
48
eating disorders
role of food becomes less nourishment and more emotional persistant patterns intended for control affect physical, nutritional health and psychol func
49
causes eating dis
``` genetics ex. if mom psycho low self esteem or self control sociocul ex. models and instagram ```
50
genetics and eating dis
ex. serotinin or melanocortin
51
psychol factors and eating dis
perfectionists low self esteem try to control everything
52
sociocult and eating dis
distorted body image
53
tips maintain body image
accept you can be own worst critic explore internal self spend time doing positive things in life accept healthy bodies look diff for everyone
54
children and eating dis
inc. in younger children in US affects girls more delays growth and sex maturation
55
anorexia nervosa
distorted body image fear gaining weight restrict diet binge eating- purging
56
anorexia nervosa- sympt and trtment
symp- weight loss, starvation (mental and phys) treatment- resolve beh and psych problems physical/ nutrition rehab
57
bulimia nervosa
fear becoming fat socially isolated purging semi-starvation interrupted by purging
58
bulimia sympt and treatment
dehydration, diuretic abuse, acid deteriorates esopha treatment seperate eating from emotions of success promote eating in response to hunger and satiety
59
diabulemia
diabetics common w/ type 1 reduc insulin amnt treatment- focus on food, diet and body weight, reduce feeling guilt if goal not met

Nutrition (12 decks)

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