The FDA is investigating reports of five deaths and a nonfatal heart attack in people who drank high- caffeine energy drinks made by the Monster Energy Company. Meanwhile, a Maryland couple has filed a wrongful death suit against the company, alleging that their product killed their 14-year-old daughter. They say Anais Fournier, 14, collapsed after drinking her second 24-ounce Monster Energy drink in two days. She died six days later. The reports are not proof that the drinks caused the deaths, but merely signal there might be a problem. Even if the deaths are determined to be caused by caffeine poisoning, the FDA will consider all sources of caffeine before blaming the deaths on the energy drink. In addition to caffeine, energy drinks contain other stimulants, including taurine and guarana , a caffeine-containing plant. Because energy drinks are sold as nutritional supplements, they are not regula...