Can Eating Green Vegetables Prevent Stroke and Heart Attack?

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Can eating green vegetables prevent stroke and maybe heart attack? Definitely, green vegetables contain nitrates that dense the blood without compromising oxygen delivery, by reducing the thickness of the blood, they prevent the risk of stroke and heart attack. Okay, now we're seeing a couple of examples on screen, whether those are right examples, what types of, what specific vegetables are we talking about? Things like broccoli, spinach, all those good dark green.

Darker is better? Darker is better. The darker the better.