Foods
What two food groups are needed to meet the vitamin C RDA?
fruits and vegetables
What is the male and female RDA for vitamin C?
M=90mg
F=75mg
Vitamin C loses electrons easily, this characteristic allows it to perform as a(n) ___________.
antioxidant
Is there a toxicity level for vitamin C? Why? or Why not?
Yes, the body reaches a saturation level in which vitamin C acts as an oxidant causing diarrhea and GI distress
What is a vitamin C deficiency called?
scurvy
Vitamin C is commonly known to be present in _______.
citrus fruits
Where is vitamin C absorbed in the body?
jejunum
What structural protein does vitamin C help to form?
collagen
What is the TUL for vitamin C?
2,000mg
What color is a person's urine who intakes excessive vitamin C?
yellow or even orange
What food contains the most vitamin C?
red bell pepper
What population is it recommended that vitamin C intakes are increased +35mg of the RDA?
smokers
Why does a lack of vitamin C cause hysteria and depression?
vitamin C is involved in serotonin and dopamine synthesis
What disease state causes a person to be at high risk for vitamin C toxicity?
hemochromotosis
What is the active form of vitamin C?
ascorbic acid
Why should foods and juices containing vitamin C be stored properly and consumed within a week after opening?
vitamin C is readily destroyed by oxygen and heat
What mineral (name and type) does vitamin C help to absorb in the body?
non-heme iron
What lifestyle factors increase vitamin C needs?
alcohol intake, smoking, obesity
What is the point in which the body can no longer absorb any more vitamin C called?
saturation point
What medications cause an increased need for vitamin C?
aspirin, barbiturates, and oral contraceptives
Name three foods that are poor choices of vitamin C.
meats, legumes, breads, milk
Why would fresh strawberries all for more vitamin C absorption than older strawberries?
there is more pectin in the older strawberries decreasing the amount of vitamin C absorbed
Although there is little evidence, how does vitamin C prevent or treat the common cold?
acting as an antihistamine to decrease nasal congestion
One Emergen-C dietary supplement packet, contains 1,000mg of vitamin C. What percentage of the RDA (men and women) does the one packet cover?
Men= 1,111%
Women= 1,333%
What type of patient in the hospital would have extream stresses and an increased vitamin C need?
burn patient