Overview
- A small Louisiana State University trial in healthy adults found two weeks of watermelon juice helped maintain blood vessel function during high blood sugar and shifted heart rate variability.
- An analysis of U.S. nutrition survey data reported that people who eat watermelon tend to have higher-quality diets with more fiber, potassium, magnesium, vitamins A and C, and lycopene, and less added sugar and saturated fat.
- Scientists highlight L-citrulline and L-arginine in watermelon, amino acids the body uses to make nitric oxide that relaxes and widens blood vessels.
- A typical two-cup serving has about 80 calories and is 92% water, which can help people reach U.S. fruit intake goals with a low-calorie, hydrating option.
- Recent reviews note possible gains in measures of vessel flexibility, yet experts still call for larger, longer trials to confirm any cardio‑metabolic benefits.