(NaturalNews) The health benefits of broccoli and related vegetables may come in part from a chemical known as sulforaphane, which appears to activate a specific heart-protecting protein, according to a study conducted by researchers from Imperial College London and published in the journal Arteriosclerosis, Thrombosis and Vascular Biology.

"We know that vegetables are clearly good for you, but surprisingly the molecular mechanisms of why they are good for you have remained unknown for many years," said researcher Paul Evans of the United Kingdom's National Heart and Lung Institute. "This study provides a possible explanation for how green vegetable consumption can promote a healthy heart."

Researchers carried out their tests directly on the chemical sulforaphane, which occurs naturally in vegetables in the family Brassicaceae, also known as cruciferous vegetables. In addition to broccoli, the cruciferous vegetables include cabbage, cauliflower, rapeseed (canola), radish, turnip, mustard greens and watercress.

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