Special Report: JavaFit

Myte Ruggiere, Coffee drinker
"It gets me going for the rest of my day."

Myte Ruggiere's morning coffee not only wakes her up...it may be helping her keep her weight down.

She's drinking a new coffee called JavaFit.

It's made with dietary supplements and as much as 150 milligrams of extra caffeine.

Jose Antonio, Ph.D, CSO, Javalution Coffee Company
"We are basically promoting fitness and part of the fitness can be consuming the coffee with the nutriceuticals, engaging in an exercise program and cleaning up your diet."

An Ohio research group tested the burn extreme version with 10 healthy drinkers.

For up to 3 hours after drinking the coffee, appetites decreased and metabolic rates increased by as much as 30 percent.

More in-depth studies are now in the works.

Jose Antonio, Ph.D, CSO, Javalution Coffee Company
"Over a 4-8 week period we've actually seen a weight loss, a fat loss of about 5 pounds and this was coupled with an exercise program."

But a Cambridge expert on dietary supplements says there's no conclusive evidence the ingredients in the coffee help you lose weight.

Dr. Catherine Ulbricht, Natural Standard
"I personally wouldn't use it."

And she worries about what's in the brew.

One ingredient, citrus aurantium, also known as bitter orange, is the chemical cousin to the now banned Ephedra.

Dr. Catherine Ulbricht, Natural Standard
"Increased risk of cardiovascular side effects. Increased blood pressure, there has been some cases of possible association of myocardial infarction which is a heart attack."

A JavaFit scientist tells 7News the coffee has a low dose of the supplements.

And the study on the burn extreme drinkers shows no apparent negative cardiovascular effects.

As for Myte - she claims she lost 5 pounds in less than 2 weeks.

Myte Ruggiere, Coffee drinker
"My intensity level of my work-outs had increased."