There is strong evidence to support that adequate vitamin C intake prevents:
1. The common cold
2. Breast cancer
3. Scurvy
4. All of the above
Question 2
Smokers are at risk for vitamin C deficiency. It is recommended that smokers take _______ vitamin C supplement.
1. 100 mg/day
2. 500 mg/day
3. 1,000 mg/day
4. 35 mg/day more than nonsmokers