KUMQUATS.

They’re tiny citrus fruits – about the size of large olives – that resemble mini-oranges. And according to the National Heart, Lung and Blood Institute, research shows that people who ate kumquats just three times a day saw their blood pressure drop an average of four points.

But know this: The trick is to eat the fruits whole – skin and all. Because kumquat skins are packed with plant compounds proven to heal arteries, and improve blood flow.