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57 Cards in this Set
- Front
- Back
True or False: Vitamins supply energy (kcals).
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False
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What is the most unstable vitamin?
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Vitamin C
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What are the fat soluble vitamins?
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Vitamins A,D,E, and K
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What are the water soluble vitamins?
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All of the B vitamins and Vitamin C
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What is a primary vitamin deficiency?
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Deficiency related to inadequate intake from the diet
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What is secondary nutritional deficiency?
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Deficiency related to a disease state; nutrient has increased need, decreased absortion, increased excretion, etc.
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What are two veggies with the most antioxidant activity?
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Kale and spinach
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What are two fruits with the most antioxidant activity?
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Prunes and raisins
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What is a megadose?
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10x or more the RDA/DRI of a nutrient
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What are the two classifications of Vitamin A?
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1. Retinoids (animal sources - higher toxicity potential)
2. Carotenoids (plant sources - relatively nontoxic) |
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What is the 'vision vitamin'?
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Vitamin A
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What is xerophthalmia?
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Long term deficiency of Vitamin A that leads to irreversible blindness (mainly in children). Aka clouded cornea
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What are the best food sources of vitamin A?
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Retinoids: organ meats, cream, butter, egg yolk, margarine
Carotenoids: dark green and yellow fruits and veggies (carrots and sweet potatoes) |
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Deficiency of what vitamin causes rickets in kids and osteomalacia in adults?
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Vitamin D
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What is the best source of Vitamin D?
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Milk
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True or false: Milk and cheese are good sources of Vitamin D.
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False; milk is a good source, but cheese is not
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What does Vitamin D toxicity cause?
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Metastatic calcification, including possible calcification leading to narrower blood vessels in the brain
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How much time in the sun is required to produce adequate Vitamin D?
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10-15 minutes (then apply sunscreen)
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What vitamin is associated with protective effects against cardiac disease/cancers?
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Vitamin E
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What is the problem with megadosing on Vitamin E?
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It may cause excessive bleeding for people on blood thinners (because it acts as a Vitamin K antagonist)
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What are the best food sources of Vitamin E?
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Vegetable oils, nuts and seeds, whole grains
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What is the primary form of Vitamin E in the diet? Which is less prominent?
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Tocopherols are the primary form; tocotrienols are less prominent
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What is the blood clotting vitamin?
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Vitamin K
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What problems may result from Vitamin K deficiency?
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Bleeding problems, including the gums (gingivitus)
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What vitamin can be synthesized by bacterial flora in the gut?
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Vitamin K (body may provide between 15% and 50% of its Vitamin K needs)
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What is the single most important dietary source of Vitamin K?
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Lettuce (green, leafy vegetables)
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Of the water soluble vs. fat soluble vitamins, which expresses deficiency symptoms faster?
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Water soluble vitamins (limited body storage)
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What are the common names of the following B vitamins (if it isn't listed):
1. B1 2. B2 3. Niacin 4. B6 5. Folic acid 6. B12 7. Pantothenic Acid 8. Biotin |
1. B1 = Thiamin
2. B2 = Riboflavin 3. Niacin 4. B6 = Pyridoxine 5. Folic acid/folate 6. B12 = Cobalamin 7. Pantothenic acid 8. Biotin |
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What is the general function of B vitamins?
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Coenzymes (assist enzymes as catalysts in energy bearing reactions)
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What symptoms are associated with vitamin B deficiency?
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Dry, cracked lips and lip sores
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What B vitamins are associated with lowering blood homocysteine levels (and therefore lowering the risk of heart disease)?
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Folate, B12, and possibly B6
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What is Beri Beri? What causes it?
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Beri Beri is neurological pain in the extremities caused by a deficiency of thiamin (B1)
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What is the best food source of thiamin?
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It is widely distributed; high in pork and whole grains
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What patients are especially prone to thiamin deficiency?
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Alcoholics, people with anorexia nervosa, and patients who recently had gastric bypass surgery
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What are the best sources of riboflavin (B2)?
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Milk products, meats, and whole/enriched grains
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What B vitamin can be sythesized from tryptophan?
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Niacin (B3)
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What causes pellegra? Why is it called a 4 'D' disease?
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Pellegra is caused by a deficiency of niacin; it is called a 4'D' disease because its symptoms are dementia, diarrhea, dermatitis, then death.
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What are good food sources of niacin?
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HBV proteins; peanut butter, whole and enriched grains
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What is the 'PMS vitamin'?
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Vitamin B6 (pyridoxine)
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What are the symptoms of a vitamin B6 deficiency?
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No classic deficiency disease; may present with oral symptoms - glossitis, cheilosis
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What are good food sources of Vitamin B6?
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Organ meats, meats, grains, ect. (pretty widely distributed)
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What is megaloblastic anemia? What causes it?
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A deficiency in folic acid causes this deficiency disease; megaloblastic anemia produces RBCs that are large and pale, with a weak cell wall.
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What vitamin has been found to decrease the incidence of neural tube defects in offspring (important for pregnant women)?
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Folate/folic acid
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What are good food sources of Folic acid/folate?
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"Foliage" (green, leafy veggies), also OJ, liver, legumes, etc.
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What B vitamin is important for cell division/growth and RBC maturation/growth?
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Folic acid/folate
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What deficiency disease is associated with vitamin B12 (Cobalamin)?
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Pernicious anemia (a type of megaloblastic anemia) - has both hematologic and neurologic abnormalities
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What is needed for vitamin B12 to be absorbed?
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R-protein and intrinsic factor
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What B vitamin can only be found in animal food sources?
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B12 (meat, milk, eggs)
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What vitamin is generally not absorbed until it reaches the illeum of the small intestine (most others are absorbed in the jejunum)?
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Vitamin B12
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What vitamin is associated with collagen formation/wound healing and protection against infections?
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Vitamin C
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What are the oral signs/symptoms of Vitamin C deficiency?
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Swollen, bleeding gums/gingivitis; loosing teeth; slow healing of soft tissue/surgical sites
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What classic deficiency disease is associated with Vitamin C deficiency?
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Scurvy (and petechiae - tiny, pinpoint skin hemmorrhages; painful to touch)
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What is Ascorbic acid?
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Vitamin C
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What are the DRIs for Vitamin C?
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90mg for males, 75 mg for females (with an additional 35 mg/day for smokers - smoke pollutants destroy vitamin C)
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What is the upper tolerable limit for Vitamin C?
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2,000 mg/day
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What are the best food sources of Vitamin C?
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Citrus fruits, strawberries, and cantaloupe
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What is the common symptom of Vitamin C toxicity?
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GI distress and dry nose bleed
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