MICRONUTRIENTS AND VITAMINS Flashcards
are compounds that help regulate many vital body processes
Vitamins
Vitamins are classified into two groups:
Water-soluble vitamins
Fat-soluble Vitamins
DISSOLVE IN WATER and pass easily into the blood during digestion. The body DOES NOT STORE these so they need to be replenished regularly.
Dissolve in water and are easily destroyed by air, light, and cooking.
Water-soluble vitamins
Water-soluble vitamins includes:
vitamins C Ascorbic Acid,
B1 (Thiamin)
B2 (Riboflavin)
B3 Niacin
B6 (Pyridoxine)
Folic acid, and
B12 (Cobalamine),
Biotin,
B5 (Pantothenic Acid)
are ABSORBED, STORED, and transported in fat. Your body stores these vitamins in your fatty tissue, liver, and kidneys.
Fat-soluble Vitamins
TRUE OR FALSE:
Excess buildup of fat-soluble vitamins can be toxic and can be stored in the liver and deficiencies are slower to appear than those caused by lack of water-soluble vitamins.
TRUE
TRUE OR FALSE:
Excess buildup of fat-soluble vitamins is safe and can be stored in the liver and deficiencies are slower to appear than those caused by lack of water-soluble vitamins.
FALSE - can be toxic
TRUE OR FALSE:
Excess buildup of fat-soluble vitamins can be toxic and can be stored in the liver and deficiencies are faster to appear than those caused by lack of water-soluble vitamins.
FALSE - slower
Fat-soluble Vitamins includes:
vitamins A, D, E, and K.
are substances that the body CANNOT MANUFACTURE but are needed for forming healthy bones and teeth and regulating many vital body processes.
Minerals
Important minerals include:
-Calcium
-Phosphorus
–Magnesium
-Iron
Vitamin Deficiency CAUSES
Causes:
Insufficient supply of vitamins in the diet.
An impairment in the body’s ability to absorb vitamins in food if bile secretion is limited or absent, absorption of fat-soluble vitamins is lowered.
who need increased vitamin C intake.
cigarette smoker and people with tuberculosis
Nutritional Value lost by:
Light
Heat
Oxidation
Bacteria
Enzymes
Insects
Antioxidant; protects cells from destruction by oxygen.
Vitamin A
Functions of Vitamin A
Antioxidant; protects cells from destruction by oxygen.
Maintains healthy eyes and skin, normal growth and reproduction, and a healthy immune system.
Helps prevent infection.
Sources of Vitamin A
Carotenoids
Fat-containing animal foods: liver, butter, cream, whole milk, cheese
Green leafy vegetables & fruits
converted to a hormone in the body.
Prohormone
formed in plants.
D2 (ergocalcifenol)
formed in humans from cholesterol in the skin
D3 (cholecalciferol)
Sources of Vitamin D
Sunlight
Milk, fish liver oils, egg yolk, butter, fortified margarine
Main function of Vitamin D
enhances Calcium absorption; good for healthy bones
Sources of Vitamin E
Vegetable oils, green leafy vegetables, nuts, wheat germ
TRUE OR FALSE:
Food alone cannot provide a beneficial amount of vitamin E, and supplements may be helpful
TRUE
TRUE OR FALSE:
Food alone can provide a beneficial amount of vitamin E, there is no need for supplements
FALSE - cannot provide, need supplements
Functions of Vitamin E
Antioxidant
Prevention of hemolytic anemia among premature infants
Enhance immune system
Retard spoilage of commercial foods
Made up of several compounds essential to BLOOD CLOTTING.
Vitamin K
Functions of Vitamin K
Formation of prothrombin; clotting of blood
Candidates likely to receive Vitamin K
Newborns immediately after birth
Clients who suffer from faulty fat absorption
After extensive antibiotic therapy
Antidote for an overdose of anticoagulant
Clients being treated for hemorrhage
SOURCES OF VITAMIN K
Green leafy vegetables
dairy products
bacteria in small intestine
Water-soluble Vitamins
Vitamin B complex
Vitamin C
Essential for NERVE AND MUSCLE ACTION, and metabolism of carbohydrates and some amino acids.
Thiamin B1
Average adult female requires _____mg/day of Thiamin (B1).
1.1
Average adult male requires ____ mg/day of Thiamin (B1).
1.2
Vitamin B1 (Thiamin) Deficiency symptoms
loss of appetite, fatigue, nervous irritability, and constipation.
a disease caused by extreme deficiency of vitamin B1.
Beriberi
WET BERIBERI
edema
DRY BERIBERI
muscle / nerve paralysis
Necessary for:
the metabolism of carbohydrates, protein, and fats;
TISSUE MAINTENANCE (especially the skin around the mouth); and healthy eyes.
Riboflavin B2
RIBOFLAVIN B2
Average adult female requires ___ mg/day.
Average adult male requires ____ mg/day.
FEMALE - 1.1
MALE - 1.3
a condition characterized by SORES ON THE LIPS and CRACKS AT THE CORNERS OF THE MOUTH
cheilosis
INFLAMMATION OF THE TOUNGE
glossitis
in the form of itching, burning, and eye fatigue.
eye strain
Riboflavin DEFICIENCY CAN RESULT IN
cheilosis
glossitis
dermatitis
eye strain
Generic name for Nicotinic Acid and Nicotinamide.
A coenzyme in energy metabolism.
Niacin B3
NIACIN B3 Deficiency symptoms
weakness, anorexia, indigestion, anxiety, and irritability.
is an extreme deficiency causing sores on the skin
PELLAGRA
NIACIN B3 DISEASES
PELLAGRA
DERMATITIS
Diarrhea
anxiety, confusion, irritability, poor memory, dizziness/ DEMENTIA
and untimely Death
Essential for protein metabolism and absorption, AMINO ACID CARRIER, and aids in release of glucose from glycogen.
Serves as CATALYST in conversion of tryptophan to niacin; helps synthesize neurotransmitters such as serotonin and dopamine.
B6 Pyridoxine, pyridoxal, pyridoxamine
B6 Deficiency symptoms
irritability, depression, and dermatitis.
B6 Deficiency in infants can cause
various neurological symptoms and abdominal problems.
Toxicity is rare; may cause temporary neurological problems.
B6 DEFICIENCY
are chemically similar compounds, and names are used interchangeably.
Folate, folacin, and folic acid
Needed for : DNA synthesis, protein metabolism, formation of hemoglobin.
Folate B9
_____ g/day of folate required one month before conception through first six weeks of pregnancy.
600
folate is measured in
micrograms