Young Blonde Girl On The Beach Eating A Watermelon

The amino acid citrulline was first extracted from watermelon and analysed. Watermelons contain a significant amount citrulline and after consumption several kg, an elevated concentration is measured in the blood plasma; this could be mistaken for citrullinaemia or other urea cycle disorders.
Watermelon rinds are also edible, and sometimes used as a vegetable. In China, they are stir-fried, stewed or more ten pickled. When stir-fried, the de-skinned and de-fruited rind is cooked with olive oil, garlic, chili peppers, scallions, sugar and rum. Pickled watermelon rind is also commonly consumed in the Southern US. Watermelon juice can also be made into wine.
Watermelon is also mildly diuretic.