Research published in the journal Cardiology (2008 Aug 12;112[3]:219-23) looked at vitamin C and vitamin E supplementation in 800 subjects after a heart attack. They were divided into two groups. One group was given 1000 mg. of vitamin C intravenously for 12 hours as well as 400 mg of vitamin C and 200 mg of vitamin E, which was given orally three times each day. The other group was given a placebo. Over the 30 day period following the heart attack, the death rate for diabetics in the supplemented group was 68% lower than the placebo group. In non-diabetics the death rate was the same for both the supplemented group and the placebo group. The authors of the study concluded that it was a good idea to supplement diabetics with antioxidants after a heart attack.