Chaps 7-10 Flashcards

(49 cards)

0
Q

More likely to be toxic than water soluble ones

A

Fat soluble vitamins

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1
Q

Do not provide energy

A

Vitamins

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2
Q

Antioxidants

A

Neutralize free radicals

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3
Q

Free radicals are

A

Oxygen containing molecules that can damage the cells of the body and possible contribute to to increased risk of chronic diseases

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4
Q

Chronic Vitamin A deficiency can cause

A

Night blindness

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5
Q

Prolonged vitamin A deficiency can lead to

A

Xerophthalmia

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6
Q

Vitamin E

A

Antioxidant

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7
Q

Vitamin K

A

Essential for blood clotting

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8
Q

Vitamin D

A

Skin pigment melanin and use of sunscreen reduce vitamin D production. Regulates bone minerals calcium and phosphorus

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9
Q

Vitamin D deficiency

A

Rickets, osteomalacia (adult equivalent), osteoporosis

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10
Q

B vitamins

A

Share common role as coenzymes

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11
Q

Beriberi

A

Thiamin (B1) deficiency, loss of appetite, weight, memory; confusion

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12
Q

Pellagra

A

Niacin (B3) deficiency. Dermatitis, diarrhea, dementia, death (4 Ds)

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13
Q

Folate deficiency

A

Neural tube birth defects

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14
Q

Vitamin B12

A

Requires intrinsic factor, protein made in the stomach. Only found in animal foods

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15
Q

Pernicious anemia

A

People who cannot make intrinsic factor (absorption of B12 decreases with age)

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16
Q

Vitamin C

A

Ascorbic acid, prevents scurvy, needed to make collagen, antioxidant, helps absorb iron from plant foods

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17
Q

People who could benefit from a supplement

A

Pregnant/lactating women, elderly, strict vegetarians, people with food allergies, medical conditions, low cal diets

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18
Q

Most abundant source in the body

A

Water

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19
Q

Intercellular fluids

A

Fluids inside cells

20
Q

Extracellular fluids

A

Interstitial fluid between cells and fluid in the blood

21
Q

Electrolytes

A

Minerals that help maintain fluid balance

22
Q

Hyponatremia

A

Caused by over consumption of water

23
Q

Water

A

Universal solvent, medium for chem reactions, part of blood, transports oxygen, nutrients and hormones to cells. Maintains body temp, lubricant, cushion

24
Most of the sodium consumed by Americans is from
Processed food
25
Potassium comes from
Fruits and veggies
26
Most abundant mineral in the body
Calcium
27
Peak bone mass occurs in
Early adulthood/20s
28
Heme iron
From animal sources
29
Non heme iron
From plant foods. Absorption increases if eaten with vitamin c
30
Iron deficiency
Most common nutritional disorder in the world
31
Hemochromatosis
Genetic disorder causes iron overload
32
Selenium is part of
Selenoproteins, enzymes, antioxidants
33
Selenium deficiency
Keshan disease, seen in children in rural areas with selenium poor soils
34
Fluoride
Reduces dental carries
35
Chromium
Increases insulin's effectiveness in cells
36
Iodine deficiency
Goiter (enlarged thyroid gland)
37
Alcohol interferes with insulin and glucagon that
Regulate blood glucose levels
38
Alcohol can increase risk of
Osteoporosis and estrogen levels in women, sexual dysfunction, disrupt sleep, dehydration and electrolyte imbalances
39
Cals per gram of alcohol
7
40
No alcohol for pregnant women
Ever
41
BMI
Weight to height ratio, >25 is overweight, >30 is obese
42
Positive energy balance
Consume more calories than expended, leads to weight gain
43
Negative energy balance
Calorie intake falls short of needs, leads to weight loss
44
Energy is comprised of
Basal metabolism 50-70% Thermic effect of food 10% Physical activities 20-35%
45
BMR
Minimum energy needed to meet basic physiological needs, 50-70% total energy needs
46
Has greatest effect on BMR
Lean body mass
47
Thermic Effect of Food (TEF)
Amount of calories expended to digest absorb and process food. About 10% of calories in food eaten
48
Liver glycogen depletion
Causes rapid weight loss in low carbohydrate diets