He Decided To Drink 1 Gallon Of Water For 30 Days.The human body requires water intake on a daily basis, as it is made of 60 percent water. However, drinking a gallon of water daily is quite challenging and it causes certain changes in your daily regimen. For instance, you will start eating less and urinate more frequently. According to the journalist, he started going to the bathroom every 20 minutes, during the very first couple of days. As mentioned above, he carried the gallon anywhere and drank water all the time, regardless of whether he was at home or not.