Drinking water daily is a healthy thing to do and when you drink water daily you should see improved health and an increase in your energy levels.
Drinking a gallon of water is also good for you when trying to lose weight since the more water you drink the less you'll want to eat and you'll take in less calories.
Other benefits of drinking a gallon of water per day is it helps to regulate your body temperature and provides essential lubrication for every joint you have.
Water also helps to flush toxins out of your body which keeps your kidneys healthy.