With so many sweet drinks available, more and more kids are drinking less and less water. A study in the journal Pediatrics the best way for someone to drop a few pounds is to drink more water. The health benefits of water are powerful, but many kids say they don't like to drink water. Research proves that when schools add more water fountains, kids drink more water and in some cases, they have seen entire classes of kids lose weight. Without four to six glasses of water a day, kids can suffer from problems like constipation and chronic fatigue. At mealtime, doctors say parents should serve only water or milk. They also say parents need to set a good example and drink more water themselves. Children will often mimic their parent's behavior. But, if kids see their parents drinking sugary beverages, kids will be less likely to drink more water.