Broccoli
Broccoli is packed with minerals that are essential for maintaining heart health, including potassium, magnesium, and calcium. Similar to kale, broccoli is rich in iron and vitamin K. Studies have shown that consuming a serving of broccoli daily can help lower blood pressure over time, thanks to the minerals that help relax blood vessels. Enjoy steamed broccoli as a side dish or munch on raw sprouts with a low-fat dip as an afternoon snack.
Watermelon
Watermelon is not only a refreshing addition to summer menus, but it also contains a non-essential amino acid called L-citrulline, which has been tested as an antihypertensive in clinical studies. L-arginine, another amino acid that is important for hormone release and immunity, is a precursor to nitric oxide, which supports the dilation of blood vessels and lowers blood pressure. Since L-citrulline is a precursor to L-arginine, it is considered an essential component of this process.