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2017 Health and nutrition > Exam 3 fat soluable > Flashcards

Exam 3 fat soluable Flashcards

1
Q

4 characteristics of fat soluble vitamins

A

They dissolve in lipids
Require bile for absorption
are stored and tissues
and are toxic in excess

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2
Q

Function is very versatile:

  • Vision
  • Cell development
  • Immune Function
  • Bone and body growth
  • Reproduction
  • Healthy body linings and skin
A

Vitamin A functions

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3
Q

Vitamin A functions

A

Function is very versatile:

  • Vision
  • Cell development
  • Immune Function
  • Bone and body growth
  • Reproduction
  • Healthy body linings and skin
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4
Q

What are the forms of Vitamin A?

A

Retinol, Retinal, and retinoic acid

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5
Q

Retinol is a form of vitamin _ and function:

A

A

Important for transportation and storage in the body

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6
Q

Retinal is a form of Vitamin _ and function:

A

Vision

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7
Q

Retinoic acid is a form of vitamin _ and function:

A

Growth gene regulation

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8
Q

Sources of Vitamin A (animal sources)?

A

Preformed active A: Liver (cows) and enriched milk

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9
Q

Sources of Vitamin A (plant sources)?

A

Beta-carotene: bright orange fruits and veggies, dark green veggies

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10
Q

Vitamin A deficiency early symptoms

A

-Night blindness

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11
Q

Vitamin A deficiency late symptoms

A

Total blindness

dry, cracked skin
decreased immune functions

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12
Q

Vitamin A toxicity is a risk with eating too much ____

A

liver

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13
Q

Vitamin A toxicity

A

Leading cause of blindness, overwhelms system

  • Danger if Vitamins A taken in supplements
  • Hair loss
  • Stunted growth
  • Liver failure
  • Too much beta-carotene
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14
Q

Which toxicity profile?
Leading cause of blindness, overwhelms system
- Danger if Vitamins A taken in supplements
- Hair loss
- Stunted growth
- Liver failure
- Too much beta-carotene

A

Vitamin A

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15
Q

Vitamin: __ functions

  • Promotes bone mineralization – makes calcium and phosphorus available to blood that bathes bones
  • Assits in immune function
  • DRIs increased for all ages
A

Vitamin D

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16
Q

Sources of vitamin D

A

Sunlight

Food sources include: egg yolks, salmon and tuna, enriched milk products

17
Q

Vitamin D deficiency children:

A

Rickets (bowed legs)

18
Q

Vitamin D deficiency everyone

A

Osteomalacia – soft porous bones, fracture easily

  • Certain cancers caused by deficiency
  • Factors of too much – skin color, age, precursor
  • Certain geographical areas don’t get it year round
  • November-April the North of the US doesn’t get enough
19
Q

Vitimin __ deficiency
Osteomalacia – soft porous bones, fracture easily
- Certain cancers caused by deficiency
- Factors of too much – skin color, age, precursor
- Certain geographical areas don’t get it year round
- November-April the North of the US doesn’t get enough

A

D

20
Q

Vitamin _ toxicity occurs at _ times the RDA level

A

D

5

21
Q

Vitamin _ toxicity

  • Can cause diarrhea, headache, nausea
  • Can be deadly
  • Not possible with sun exposure.
A

D

22
Q

Vitamin D toxicity symptoms

A
  • Can cause diarrhea, headache, nausea
  • Can be deadly
  • Not possible with sun exposure.
23
Q

Vitamin _ functions

  • Fat-soluble antioxidant
  • Protects cell membranes in body tissues and blood
  • Participates in immune system
  • Steps chain of reaction (caused by free radicals) that damage cells
  • DRI based on alphatocopherol
A

Vitamin E

24
Q

Vitamin E Food Sources

A
  • Widespread of food
  • in many skin products
  • Found in all fruits and veggies
25
Q

Vitamin E functions

A
  • Fat-soluble antioxidant
  • Protects cell membranes in body tissues and blood
  • Participates in immune system
  • Steps chain of reaction (caused by free radicals) that damage cells
  • DRI based on alphatocopherol
26
Q

Fat soluble vitamins include

A

A, D, E, and K

27
Q

Vitamin E deficiency is

A

rare because it’s so widspread.

28
Q

Usually only see V E deficiency with fat malabsopbtion

A

ye

29
Q

Vitamin _ is very reactive and is an antioxidant. This makes it hard to cook with the vitamin in tact

A

E

30
Q

Vitamin E toxicity symptoms

A
  • Upset stomach
  • rare
  • can interfere with medications
31
Q

Vitamin K functions

A

Blood clotting and bone formation

32
Q

Vitamin K sources

A

Made by intestinal bacteria

  • cannot meet needs alone
  • green, leafy vegatables
  • cabbages
33
Q 
Vitamin _ sources:
Made by intestinal bacteria 
* cannot meet needs alone
*green, leafy vegatables
*cabbages
A

K

34
Q

The only vitamin absorbed in the Colon (instead of small intestine) is

A

K

35
Q

K deficiency is rare and children are given injection because

A

their guts aren’t fully developed

36
Q

Vitimin k toxicity

A

is rare but can occur with supplements

2017 Health and nutrition (22 decks)

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