Mid Term #3 Flashcards
What must be met to classify a compound as a VITAMIN?
- Absence leads to deficiency
- Quickly cured when resupplied
What is considered a FAT-SOLUBLE VITAMIN?
- Vitamin A, D, E and K
- Liver and fatty tissues
- Travel with chylomicron through the blood stream
What is considered a WATER-SOLUBLE VITAMIN?
- Readily excreted
- Vitamin C and B
- Lost in the food processing and preparation
What three things damage VITAMINS?
- Light
- Heat
- Oxygen
What are the three things you can do to minimize NUTRIENT LOSS?
- Wait to wash and peel
- Freeze fresh produce
- Store in closed containers
What is the best COOKING METHOD for preserving the vitamin content of fresh vegetables?
Steaming or stir-frying
What is a good source of VITAMIN E?
Plant oils
What is a good source of VITAMIN D?
Milk
What is a good source of VITAMIN K?
Dark green leafy vegetables
What is a good source of VTIMAN C?
Citrus fruits
What is the best way for a college student to increase his or her intake of PROVITAMIN A CAROTENOIDS?
Eat a baked sweet potato instead of a baked russet potato.
What would be the best way for a college student to increase his or her INTAKE OF FOLAT?
Eat a spinach salad topped with strawberries and almonds
What are the two best sources of THIAMIN?
- Grains
- Protein
What are the three best sources of VITAMIN B12?
- Animal meat
- Cheerios
- Eggs
What are the three ANTIOXIDANT functions?
- Beta Carotene
- Vitamin C
- Vitamin E
How does VITAMIN A support the immune system?
Maintains epithelial tissue, which prevents infection.
Why is Vitamin D is important for bone health?
Absorption and excretion of calcium and phosphorus.
The main function of VITAMIN K in the body?
Blood clotting
What function do many B VITAMINS serve in the production of energy?
Function as coenzymes
What four things does a inefficient intake of THIAMIN leads to?
- Weakness and loss of appetite
- Nervous tingling
- Poor coordination
- Severe edema
What two things does a inefficient intake of RIBOFLAVIN leads to?
- Inflamed skin mouth and tongue
- Cracking of corners of mouth
What six things does a inefficient intake of NIACIN leads to?
- Poor appetite
- Weakness
- Weight loss
- Dementia
- Diarrhea
- Dermatitis
What five things does a inefficient intake of VITAMIN C leads to?
- Weakness
- Slow wound healing
- Bone pain
- Bleeding gums
- Hemorrhages
What four things does a inefficient intake of VITAMIN B-12 leads to?
- Anemia
- Nerve digeneration
- Paralysis
- Death
What is the sign of NIACIN toxicity?
Skin flushing
What is the sign of VITAMIN A toxicity?
Birth defects
What is the sign of VITAMIN C toxicity?
Diarrhea
What is the sign of FOLIC ACID toxicity?
Can mask vitamin B-12 deficiency.
Which is a criterion for choosing a MULTIVITAMIN-MINERAL SUPPLEMENT?
Provides less than or close to the recommended intake.
Scientific evidence indicates that dietary supplements are often necessary for everyone EXCEPT who?
Athletes
Scientific evidence indicates that DIETARY SUPPLEMENTS are often necessary for which three types of people?
- Chronic Dieters
- Infants
- Pregnant women
Which word is used to describe the MOVEMENT OF CANCER CELLS from one body part to another?
Metastasis
Several phytochemicals like lycopene and resveratrol may help the body ward off cancer. What is the best way to incorporate PHYTOCHEMICALS into your diet?
Consume a variety of brightly colored fruits and vegetables.
Why are fruits and vegetables so often implicated in CANCER PREVENTION? List three reasons.
- Provide phytochemicals
- Fiber can aid weight management
- Antioxidants
What are VITAMINS?
Carbon-based structures with no calorie value
What are the three VITAMIN A key functions?
- Low-light vision
- Maintain epithelial cells» healthy immune function
- Gene expression
What is the main function of BETA-CAROTENE?
”Pro-vitamin” which converts it to Vitamin A
Antioxidant
What is the main function of VITAMIN D?
Maintain blood calcium levels
What is the main function of VITAMIN E?
Scavenges and stops free radicals in body
What is the main function of VITAMIN K?
Helps synthesize blood clotting proteins
What are the three functions of VITAMIN C?
- Collagen synthesis
- Wound healing
- Antioxidant
What are the eight types of B VITAMINS?
- Thiamin
- Riboflavin
- Niacin
- Folate
- Vitamin B12
- Vitamin B6
- Biotin
- Pantothenic Acid
What are the key B-VITAMINS Key Function?
Coenzymes in many cellular functions:
- Thiamin, riboflavin, and niacin: release energy
- Folate: DNA/RNA synthesis, cell division
- Vit B12: protects nerve fibers
What are four foods that have VITAMIN A?
- Orange fruits and vegetables
- Leafy green vegetables
- Milk
- Liver
What are two foods that have VITAMIN D?
- Salmon and tuna
- Fortified milk and cereal
What is a good source VITAMIN D?
The sun
What three foods have VITAMIN E?
- Plant oils
- Nuts
- Seeds
What are the two food sources of B VITAMINS?
- Enriched grains
- Pork and other protein foods
What are the two food sources of RIBOFLAVIN?
- Enriched grains
- Milk
What is RIBOFLAVIN SENSITIVITY?
Ultraviolet light & irradiation so store in containers
What are two food sources of NIACIN?
- Enriched grains
- Most meats
What are two food sources of FOLATE?
- Veggies, esp leafy greens
- Citrus fruits
What are the two food sources VITAMINSB12?
- Animal products
- Fortified soymilk and cereals
What are the two food sources of VITAMIN C?
Colorful fruits and veggies
What is VITAMIN A deficiency?
Night Blindness/Xeropthalmia
What are the two types of VITAMIN D deficiencies?
- Rickets (Children)
- Ostemalacia (Adults)
“soft” bones
What are the four D’s with NIACIN DEFICIENCY PELLAGRA?
- Dermatitis (skin rash)
- Diarrhea
- Dementia
- Death
What is the FOLATE deficiency?
Anemia
What is the FOLATE deficiency during pregnancy?
Baby at risk for neural tube defects
What are the two VITAMIN B12 deficiency?
- Nerve degeneration
- Anemia
What is the VITAMIN C deficiency?
Scurvy which leads to:
- Easy bruising
- Slow healing
- Hemorrhages
- Bleeding gums
What are the three effects of VITAMIN A toxicity?
- Birth defects
- Liver failure
- Death
What is BETA-CAROTENE toxicity?
Hypercarotenemia
What is VITAMIN D toxicity?
Elevated blood calcium which leads to the calcification of soft tissues
What is VITAMIN K toxicity?
- From supplements
- Opposes anti-clotting medications
What is a “NIACIN FLUSH”?
- Skin flushing
- Hives
- Rash
What is FOLATE toxicity?
- Hides signs of B12 deficiency
- Deficiency can cause anemia
What is VITAMIN C Toxicity?
GI discomfort and diarrhea
What is the stance of VITAMIN C and COLDS?
- No relationship between Vitamin C and cold prevention
- Some studies show fewer colds, fewer ill days, and shorter duration of symptoms
Fresh, frozen, or canned, which is BEST?
“Fresh,”
- From your garden vs “fresh” after transport and storage
Canning or Freezing:
- Not all “processing” is “bad”
- Frozen and canned fruits and vegetables retain many vitamins
Who may benefit from a SUPPLEMENT?
- People with deficiencies
- Pregnant & Lactating women
- Women in childbearing years
- Newborns
- Elderly
- Strict vegans
- Alcoholics
- People with HIV or other wasting illnesses
- People who have had weight loss surgery
What are the two things to watch out for in a SUPPLEMENTS?
- Doses (Look for acceptable amounts < or equal to DRI)
- Quality
What is the SUPPLEMENT REGULATION?
- Loosely regulated by FDA
- FTC regulates marketing claims
What are the four type CANCER DEVELOPING?
- Tumor: spontaneous growth
- Benign: noncancerous
- Malignant: cancerous, tumor spreading
- Metastasis: process of cancer cells spreading from one part of the body to another