With the increasing popularity of energy drinks, doctors are seeing more and more cases of negative reactions experienced by the kids and teenagers who consume them. Although energy drinks contain ingredients that many believe to be relatively harmless in smaller quantities, many kids and teens as well as adults consume large amounts as they are either unaware or unconcerned with the potential harmful effects. Doctors warn that kids and teens are more susceptible to the effects of energy drinks due to their smaller and more sensitive growing body's, much more than adults. Researchers also warn that many energy drinks contain a large mixture of vitamins and herbal extracts that may cause side effects that are not always adequately understood. With the energy drink market expected to reach $9 billion in 2011 just in the U.S., alone, it's not surprising that energy drink manufacturers are downplaying a recent report warning about the hazards of energy drink consumption in the young. Did we mention kids and young adults account for half of this $9 billion market! Experts recommend kids and teens quench their thirst with water or if they're a young athlete training hard, consider a sports drink that contains sugar, so long as it's consumed in moderation.