Watermelon is the most ubiquitous fruit available during hot summer months, to quench the thirst. It contains 92 per cent water and relieves dryness as soon as it is consumed. Moreover, it has nutrients that are good for the heart and kidneys. However, most people like watermelons for the red colour inside. Wily traders use this factor to inject poisonous chemicals and dyes, for making the inside of the fruit blood red in colour. This is most dangerous, as it might lead to cancers, especially among women.