Watermelon promotes urination, lubricates the intestines, quenches thirst, clears heat from the body and detoxifies. It's cool and sweet and works on the heart, stomach and bladder.
Nutrition - If you've gotten used to thinking about the juicy red flesh at the center of a watermelon as its only nutrient-rich area, it is time to change your thinking. In a recent study, food scientists compared the nutrient content of flesh from different parts of a watermelon: flesh from the center, the stem end, the blossom end (opposite from the stem), and the periphery (the part nearest to the rind).
What they've discovered were impressive concentrations of phenolic antioxidants, flavonoids, lycopene, and vitamin C in all of these different areas. The exact distribution of nutrients was also highly dependent on the variety of watermelon. But there was no area in any of the watermelon varieties that came out badly in terms of nutrients, and in many of the watermelon varieties, the flesh's outer periphery contained impressive concentrations of most nutrients.