Exam 3 fat soluable Flashcards Preview

2017 Health and nutrition > Exam 3 fat soluable > Flashcards

Flashcards in Exam 3 fat soluable Deck (36)
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1

4 characteristics of fat soluble vitamins

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

2

Function is very versatile:
-Vision
-Cell development
-Immune Function
-Bone and body growth
-Reproduction
-Healthy body linings and skin

Vitamin A functions

3

Vitamin A functions

Function is very versatile:
-Vision
-Cell development
-Immune Function
-Bone and body growth
-Reproduction
-Healthy body linings and skin

4

What are the forms of Vitamin A?

Retinol, Retinal, and retinoic acid

5

Retinol is a form of vitamin _ and function:

A

Important for transportation and storage in the body

6

Retinal is a form of Vitamin _ and function:

Vision

7

Retinoic acid is a form of vitamin _ and function:

Growth gene regulation

8

Sources of Vitamin A (animal sources)?

Preformed active A: Liver (cows) and enriched milk

9

Sources of Vitamin A (plant sources)?

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

10

Vitamin A deficiency early symptoms

-Night blindness

11

Vitamin A deficiency late symptoms

Total blindness

dry, cracked skin
decreased immune functions

12

Vitamin A toxicity is a risk with eating too much ____

liver

13

Vitamin A toxicity

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

14

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

Vitamin A

15


Vitamin: __ functions
- Promotes bone mineralization -- makes calcium and phosphorus available to blood that bathes bones
- Assits in immune function
- DRIs increased for all ages

Vitamin D

16

Sources of vitamin D

Sunlight

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

17

Vitamin D deficiency children:

Rickets (bowed legs)

18

Vitamin D deficiency everyone

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

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

D

20

Vitamin _ toxicity occurs at _ times the RDA level

D
5

21

Vitamin _ toxicity
- Can cause diarrhea, headache, nausea
- Can be deadly
- Not possible with sun exposure.

D

22

Vitamin D toxicity symptoms

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

23

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

Vitamin E

24

Vitamin E Food Sources

- Widespread of food
- in many skin products
- Found in all fruits and veggies

25

Vitamin E 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

26

Fat soluble vitamins include

A, D, E, and K

27

Vitamin E deficiency is

rare because it's so widspread.

28

Usually only see V E deficiency with fat malabsopbtion

ye

29

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

E

30

Vitamin E toxicity symptoms

-Upset stomach
-rare
-can interfere with medications