What Happens to Your Body When You Drink Watermelon Juice Regularly

Watermelon juice is a nutritious, hydrating beverage packed with eletrolytes, magnesium, and potassium, which can aid in fluid maintenance and exercise performance.

1. It Provides Hydration

Watermelon helps you up your water intake: more than 90% of the fruit is water. Whether you’re eating watermelon or drinking watermelon juice, it boosts your hydration.

“One cup of diced watermelon contains 139 milliliters of water,” Alexandra Rosenstock, RD, CDN, registered dietitian at Weill Cornell Medicine and NewYork-Presbyterian, told Verywell.

This is one of the reasons it can be refreshing after spending time outside on a hot day.

“Given its water content, watermelon can help replenish fluids if you are feeling mildly dehydrated after spending time in the sun, particularly if consumed with a salty snack,” Rosenstock said.

2. It Offers Electrolytes

Watermelon juice is an excellent source of electrolytes including magnesium and potassium.

“Electrolytes are lost in sweat, therefore when exercising or sweating in the heat, replenishing electrolytes is helpful,” Julia Zumpano, RDN, LD, a dietitian at Cleveland Clinic’s Digestive Disease Institute of Nutrition, told Verywell.

Electrolytes are essential and play a role in many bodily processes. Magnesium helps your muscles and brain function normally, and potassium, which is found in all body tissues, helps your cells function normally.

3. It Boosts Essential Nutrients

Many of the nutrients your body needs every day—and that make up a balanced, well-rounded diet—can be found in watermelon juice.

“Watermelon juice contains vitamin A, vitamin C, lutein, folate,” and more, Rosenstock said.

4. It May Help Lower Your Blood Pressure

L-citrulline, an amino acid, is also found in watermelon juice.

“Watermelon contains citrulline, which has been shown to aid in blood pressure control,” Zumpano said. L-citrulline has also been linked with increased bioavailability of nitric oxide, research suggests.

When bioavailability of nitric oxide is diminished, you may be at higher risk for high blood pressure, atherosclerosis, insulin resistance, type 2 diabetes, and cardiovascular disease.

5. It May Have Other Heart Health Benefits

Another amino acid called L-arginine can also be found in watermelon juice.

“L-arginine has been associated with certain health benefits, including improving blood flow and possibly reducing blood pressure,” Rosenstock said.

Research has shown that L-arginine can be beneficial to people with high blood pressure, elevated cholesterol, heart disease, insulin resistance, and diabetes.

Watermelon juice also contains lycopene and beta carotene, which are both antioxidants, as is vitamin C.

Antioxidants promote cardiovascular health, and they can prevent or slow down some types of cell damage.

“Lycopene has been shown to help improve blood lipids and blood pressure,” Zumpano added.

6. It Can Help With Weight Loss

Eating watermelon has been linked to higher diet quality (in both adults and children), watermelon juice may be helpful for sore muscles, and research suggests watermelon might also help some people manage their weight.

Another perk of watermelon is that you can consume the whole thing: after you’ve sipped on the watermelon juice and eaten the fruit, the rind can be stewed, stir-fried, or pickled, and the seeds are also edible.