No matter how you slice it, watermelon is a sweet, low-calorie, high-fiber treat. But now research suggests that watermelon can help reduce and prevent high blood pressure.

Researchers at Florida State University in the US discovered that watermelon is rich in the amino acid L-citrulline, a precursor of L-arginine, that reverses the effects of prehypertension by maintaining arterial function and improving proper blood flow.