How greens may protect the heart (UK)

"Researchers have discovered a possible reason why green vegetables such as broccoli, cabbage and cauliflower are good for the heart. Their work suggests a chemical found in the vegetables can boost a natural defence mechanism to protect arteries from disease. The Imperial College London team hope their work could lead to new dietary treatments to prevent heart problems. Details appear in Arteriosclerosis Thrombosis and Vascular Biology" - BBC