Patients with cardiovascular disease or diabetes who ate the healthiest diets were less likely to die from CVD and had lower risks of stroke, heart attack and heart failure, compared with people who had the poorest-quality diet, Canadian researchers reported in the journal Circulation. The effects of diet were seen no matter what medications patients were taking. "From this we can infer that patients may derive an additive benefit when dietary modification is combined with proven drug therapies and other lifestyle changes," researchers wrote.