Like tomatoes, Watermelons are an excellent source of lycopene. In addition to the benefits of lycopene, watermelons also help relax blood vessels, which can help reduce swelling and increase blood flow to any injuries to help it heal. This relaxing effect can also help with digestion and possibly help men suffering from erectile dysfunction. Interestingly enough, the rind of the watermelon contains even more of the amino acid that helps dilate your blood vessels1,2
Watermelons are also a good source of beta-carotene. They also contain arginine, which is an amino acid that may help your body naturally burn calories.1
Note: When watermelons are chilled for a long time in the refrigerator they will lose a lot of their beta-carotene content because it breaks down in the cold. If you like eating watermelon that’s cold, put it in the fridge a few hours before eating to help preserve as much beta carotene as possible.