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Nutrition > Vitamins (E3) > Flashcards

Vitamins (E3) Flashcards

1
Q

Vitamin A Toxicity

A

ACUTE VITAMIN:
nausea
vomiting
death
chronic vitamin

CHRONIC VITAMIN
birth defects
liver and bone abnormalities

BETA CAROTENE
harmless yellowing of the skin

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1
Q

Vitamin A Function

A

activation/deactivation of genes
cell differentiation, growth, and development
immune function
vision cycle
cancer prevention
beta-carotene precusor (antidant)

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2
Q

Vitamin A Deficiency

A

Night blindness/blindness
corneal drying
impaired growth
impaired immunity
dry skin

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3
Q

Vitamin A Food sources

A

fruits/veggies with orange
dark green leafy green veggies
fortified milk
liver

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4
Q

Vitamin K Functions

A

Blood clotting
synthesis of bone matrix proteins

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5
Q

Vitamin K Food sources

A

green veggies

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6
Q

Vitamin K Deficiency

A

hemorrhages
bone fractures

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7
Q

Vitamin K Toxicity

A

opposes the effects of anti-clotting medication

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8
Q

Vitamin D Function

A

maintain a blood calcium level

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9
Q

Vitamin D Food sources

A

the liver produces vitamin D from cholesterol
fortified milk
fortified cereal
fatty fish
liver
egg yolk

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10
Q

Vitamin D Deficiency

A

Abnormal bone growth (rickets in children, osteomalacia in adults)

reduced immunity

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11
Q

Vitamin D Toxicity

A

elevated blood calcium
calcification of soft tissue

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12
Q

Vitamin E Function

A

Antioxidant protects cell membranes and polyunsaturated fatty acids

Stabilizes free radicals

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13
Q

Vitamin E food sources

A

Vegetable oils
seeds
unprocessed grains

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14
Q

Vitamin E Deficiency

A

red blood cell breakage
nerve damage

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15
Q

Vitamin E Toxicity

A

enhances the effect of anti-clotting medication (hemorrhages)

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16
Q

Thiamin Function

A

cofactor in energy metabolism

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17
Q

Thiamin Food sources

A

grains, protein

18
Q

Thiamin Deficiency

A

BERIBERI: weakness, edema, nervous system dysfunction

19
Q

Thiamin Toxicity

A

None reported

20
Q

Riboflavin function

A

cofactor in energy metabolism

21
Q

Riboflavin food sources

A

milk, grains, meats

22
Q

Riboflavin deficiency

A

cracks and redness at the corner of the mouth

purplish painful tongue

23
Q

Riboflavin Toxicity problems

A

None reported

24
Q

Vitamin C Function

A

maintaining connective tissue, collagen

25
Q

Vitamin C Food source

A

all fruits and veggies

26
Q

Vitamin C Deficiency

A

Scurvy (corkscrew hair, weaken, bruising bleeding, hemorrhage, pound wound healing)

27
Q

Vitamin C toxicity

A

Not common, large doses sometimes bring GI discomfort

28
Q

Niacin function

A

cofactor in energy metabolism

29
Q

Niacin food source

A

Protein foods

30
Q

Niacin Deficiency

A

Pellagra: the three Ds
Diarrhea, Dermatitis, Dementia, Death

31
Q

Niacin toxicity

A

Painful flush, hives, rash, excessive swelling

32
Q

Folate Function

A

Coenzymes in DNA/RNA synthesis

33
Q

Folate Food source

A

Fortified foods (grains), foliage (leafy greens), legumes

34
Q

Folate Deficiency

A

Immature RNCs, WNCs, GI tract cells

Megaloblastic anemia

Neural tube birth defects

35
Q

Folate Toxicity

A

Can mask B12 deficiency symptoms

36
Q

B12 Function

A

Coenzyme in DNA/RNA synthesis, RBC synthesis, myelination of nerves

37
Q

B12 Food source

A

animal sources

38
Q

B12 Deficiency

A

Megaloblastic anemia

Nerve damage can lead to paralysis

39
Q

B12 toxicity

A

none reported

40
Q

B6 function

A

cofactor in energy metabolism

41
Q

B6 Food sources

A

animals and grains

42
Q

B6 Deficiency

A

Not Likely

43
Q

B6 Toxicity

A

Nerve damage

Nutrition (8 decks)

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