Biological Roles
Vitamin C acts as this when it protects the body from diseases related to oxidative stress.
What is an antioxidant?
These are the 2 most common sources of vitamin C.
What are fruits and vegetables?
A well known disease state from vitamin C deficiency, often presenting with bleeding or diseased gums.
What is scurvy?
This is the maximum utilization amount per dose for vitamin C.
What is significant about the value 1000 mg/dose?
High doses of vitamin C can increase the absorption of Aluminum in these agents.
What is the interaction of vitamin C with Aluminum containing antacids?
Vitamin C does this by keeping blood vessels firm.
What is preventing bruising?
Vitamin C is lost in when this is performed during food preparation.
What is soaking in water for long periods of time?
OR
What is higher heat exposure?
Vitamin C deficiency is often confused with these disease states.
What are arthritis, hemorrhagic disorders, gingivitis, protein, energy malnutrition?
This is the upper limit of daily vitamin C.
What is significant about the value 2000 mg/day?
Alcoholism's effect on vitamin C.
Wounds heal slower in vitamin C deficient individuals due to a lacking of this vitamin C requiring process.
What is collagen biosynthesis?
These types of food have been seen to potentially hold higher amounts of vitamin C.
What are canned and frozen foods?
These are special populations that may require vitamin C supplementation.
What are smokers, alcoholics, AIDS patients, ulcer or dietary impaired patients, patients with a history of achlorhydria or surgical removal of the stomach?
These are formations that can build in the kidney with excessive use of vitamin C daily.
What are oxalate-based kidney stones?
This is the effect of vitamin C on chemotherapy drugs.
What interaction combination has interference with mechanism of action?
Vitamin C increases the absorption of this, and maintains its supply when in a reduced state.
What is non-heme iron?
These are the recommended dietary vitamin C requirements for women ages 14-18 and 20-50+.
Why is 75 mg and 60 mg of vitamin C significant?
A common symptom of vitamin C deficiency in infants.
What is impaired bone growth?
This is the percent absorption range of vitamin C when taking 30-180 mg/day.
What is 70-90% vitamin C absorption?
The effect of high vitamin C dosing in conjunction with acetaminophen.
What is decreased urinary elimination of acetaminophen?
This is the action of vitamin C as a pro-oxidant.
What is causing free radicals to form?
Vitamin C is sensitive to destruction in the presence of these pro-oxidant minerals.
What is Iron and Copper?
Infants given these are at risk of being vitamin C deficient.
What is unfortified formula/ evaporated or boiled cows milk?
The benefit of Ester-C as a vitamin C derivative.
What is increased bioavailability?
Aspirin and NSAIDS cause these effects on vitamin C.
What causes increased urinary excretion of vitamin C?