Ripped No Typically, it will take less than 2 minutes to consume a glass of water. Water will be the most critical nutrient of the body, but a lot of people do not drink enough of it. Some signs of dehydration could be frustration, fatigue, and slow intellectual capacity. Most people get a caffeine- packed beverage when the things they absolutely need is water. Some experts state that - caffeinated or non-alcoholic products count toward your everyday requirement of seven glasses of water.