Eating watermelon may be good for your heart.

That’s what researchers at Florida State University found after studying the effects of watermelon extract containing oral L-citrulline/L-arginine, amino acids that help reduce blood pressure.

Study participants received either watermelon extract or a placebo for six weeks, followed by four weeks of no supplement/ placebo. Then the participants switched regimens. At the study’s end, all nine participants demonstrated lower blood pressure.

It was a small study, but the data shows promise that watermelon may be a good food for heart health. It remains a good source of vitamins A, B6, and C, as well as potassium, fiber, and lycopene.