FAT SOLUBLE VITAMINS (VITAMIN A, D, E, K) Flashcards
Visual adaptation to light and darkness
VITAMIN A: RETINOL
Handling and preparation losses are seen with heating
DIETARY SOURCES OF VITAMIN A: RETINOL
DIETARY SOURCES OF VITAMIN A: RETINOL
- Handling and preparation losses are seen with heating
- Fruits and vegetables (dark green and deep orange)
- Animal sources (fish, liver oils, butter, eggs, fortified milk products)
What are the RDA (VITAMIN A: RETINOL) for:
FEMALE =
RDA FOR FEMALE: 700 ug RAE/day
What are the RDA (VITAMIN A: RETINOL) for:
MALE =
RDA FOR MALE: 900 ug RAE/day
VITAMIN A: RETINOL is also measured in ___
IU
Four (4) DEFICIENCIES of VITAMIN A: RETINOL
*NIGHT BLINDESS
*KERATINIZATION
*XEROPHTHALMIA
*KERATOMALACIA
Lack of vitamin A at the back of the eye in the retina; major cause of childhood blindness in the world
NIGHT BLINDESS
Changes in cell structures throughout the body that result in hard, inflexible skin due to secretion of protein keratin
KERATINIZATION
Lack of Vitamin A at the front of the eye that affects the cornea and can lead to total blindness
XEROPHTHALMIA
Softening of the cornea occurs, leading to blindness that is irreversible
KERATOMALACIA
EXCESS of VITAMIN A: RETINOL
- SYMPTOMS: HEADACHE, VOMITING, WEIGHT LOSS TO BIRTH DEFECTS AND BONE ABNORMALITIES
- TERATOGENIC EFFECTS
- YELLOWING OF SKIN
Healthy skin and mucous membranes depend in part on adequate amounts of _____
VITAMIN A: RETINOL
Regulate cell differentiation associated with reproduction and the immune response
VITAMIN A: RETINOL
___ metabolites exist in the body and are used to synthesize this vitamin, unlike other vitamins
VITAMIN D: CALCIFEROL
Regulation of calcium and phosphorus in the body
VITAMIN D: CALCIFEROL
Regulation by the kidney and parathyroid glands helps maintain _______ balance
VITAMIN D: CALCIFEROL
Sunlight activation enables _____ synthesis in the skin
VITAMIN D: CALCIFEROL
____ also works with other vitamins (__,___,__) hormones and minerals to affect bone growth
VITAMIN D: CALCIFEROL
VITAMIN (A, C, K)
DIETARY SOURCES of VITAMIN D: CALCIFEROL
- Found naturally in fish, liver and oils
- Fortification of dairy products
- Handling and preparation losses are seen with heating
What are the RDA (VITAMIN D: CALCIFEROL) for:
MALE =
MALE = 5ug/day
What are the RDA (VITAMIN D: CALCIFEROL) for:
FEMALE =
FEMALE = 5ug/day from 19-50 years
Four (4) DEFICIENCIES of VITAMIN D: CALCIFEROL
- RICKETS
- OSTEOMALACIA
- DEVELOPMENT OF OSTEOPOROSIS
- ASSOCIATED OF OSTEOPOROSIS
Clinical deficiency state affecting children that results in structural deformities (bowed legs and pigeon breast) due to poor bone mineralization and growth retardation
RICKETS
Clinical deficiency state affecting adults that result in bone weakness, fragility and increased bone fractures
OSTEOMALACIA
Vitamin D deficiency can lead to development of osteoporosis in conjunction with calcium losses
DEVELOPMENT OF OSTEOPOROSIS
Intestinal, liver or PTH hormone disorders, chronic pancreatitis, or renal disorders
ASSOCIATED OF OSTEOPOROSIS
______ is the clinical excess state that is associated with calcium deposits, growth retardation and kidney damage
Hypervitaminosis D
EXCESS of VITAMIN D: CALCIFEROL
Associated with increased levels of calcium that can upset hormone balance and result in endocrine dysfunction
Antioxidant Properties
VITAMIN E: TOCOPHEROL
Protects all cell membranes
VITAMIN E: TOCOPHEROL
Synergistic Effects
VITAMIN E: TOCOPHEROL
Effect on oxygen and blood exchange
VITAMIN E: TOCOPHEROL
What are the RDA (VITAMIN E: TOCOPHEROL) for:
FEMALE =
FEMALE = 15MG/DAY
What are the RDA (VITAMIN E: TOCOPHEROL) for:
MALE =
MALE = 15MG/DAY
HANDLING AND PREPARATION LOSSES ARE SEEN IN COOKING AND OXYGENATION
VITAMIN E: TOCOPHEROL
4 (FOUR) DEFICIENCIES of VITAMIN E: TOCOPHEROL
- Erythrocyte hemolysis
- Immunosuppressed or with fat malabsorption e.g. Cystic Fibrosis
- Fertility and sterility issues
- Neurological and muscular symptoms