5 doctors weighed in: Does alcohol thin the blood? 5 doctors weighed in Want a second opinion? Blood actually doesn't get thinned.  what we call blood thinners are agents that decrease the ability of the blood to clot, usually used in people whose blood clots excessively.
However, due to its very high water content, the same amount of watermelon that provides us with 16% of the DRI for vitamin C only costs us about 46 calories, or about 2% of our total daily calories on a 1800-2000 calorie diet.
Watermelon is a fruit, and has many of the associated benefits including weight loss and energy levels. Despite the popular belief that watermelon is just water and sugar, watermelon is actually a nutrient dense food. It provides high levels of vitamins, minerals, and antioxidants and just a small number of calories.