How Much Caffeine Is in Your Energy Drink?

How Much Caffeine? continued...

Monster Energy, the drink blamed in a lawsuit for the death of a 14-year-old girl and cited in five deaths reported to the FDA, has 92 milligrams of caffeine per 8-ounce serving. That's about mid-range for the energy drinks tested -- but more than the lawsuit alleges the product contains.

"Neither the science nor the facts support the allegations that have been made," Monster Beverage Corp. says in a statement. "Monster reiterates that its products are and have always been safe."

Another thing that worries Williams is that energy drinks are marketed to teens and young adults.

"These drinks are accessible to kids; they are sold in stores near the soft drinks," she says. "And a lot of kids look at these drinks as a healthier alternative to soda. They may think it is better for them than sugary soft drinks."

The study findings appear in the December issue of Consumer Reports.