This crunchy watery fruit belongs to the cucurbitaceae family, same as pumpkins and cantaloupes. It has high water content, approximately 92 per cent, giving it a flesh crunchy texture. Consuming watermelons regularly can boost your energy levels because it contains vitamin B, which is responsible for energy production in the body. Eating watermelon, as opposed to drinking energy drinks before a work out, is considered a healthier option. The fruit is packed with antioxidants like vitamin C, A and lycopane, which help fight the damaging effects of free radicals in the body. Studies have suggested that consuming foods which contain lycopane reduces the occurrence or progression of prostate cancer. In addition, watermelon is a rich source of amino acids citrulline and arginine, which help maintain healthy arteries, overall cardiovascular function and blood flow. These amino acids also help remove excess ammonia from the body, which can lead to fatigue, kidney and liver disease.