Research Regarding the Benefits or Risks of Taking Vitamin Supplements

Research regarding the benefits or risks of taking vitamin supplements to reduce risk of chronic diseases has shown that:​

A) vitamin C supplements are associated with reduced chronic disease risk.
B) people who take vitamin E supplements have lower rates of heart disease.
C) beta-carotene supplement use increases lung cancer risk in smokers.
D) ​all supplements sold in this country are safe.
E) ​supplements can fix nutrient deficiencies so a diet that lacks many nutrients is not dangerous.