Corbis
For as long as I can remember -- from the first time I set foot in a gym, actually -- I've been listening to folks debate the question: When is the best time to exercise?

Now a new study may finally shine some light on the matter.
Rift Gold Researchers found that exercising before eating has several beneficial effects, including preventing weight gain and maintaining insulin sensitivity.

Researchers in Belgium took 27 healthy young men and fed them all a horrible diet high in sugar and fat and calories. The particular diet was chosen because it was just about guaranteed to create both weight gain and a reduction in insulin sensitivity. RIFT Platinum Insulin sensitivity is something good -- it's when the cells respond well to insulin, meaning that insulin does an excellent job of removing excess sugar from the bloodstream and getting it into the cells where it can be "burned" for energy. When someone is said to be insulin resistant, on the other hand, the system doesn't work well, and the person winds up with high blood sugar and high insulin -- a path to either metabolic syndrome or diabetes. Most diabetics are insulin resistant, and most people who are insulin resistant are overweight, since insulin "shuts down" the fat-burning process.

In the Belgian study, the researchers divided the men into three groups. One group did nothing but eat the terrible diet. The second and third group exercised and did the exact same workout, but the second group exercised after breakfast and the third group exercised before breakfast.

The results were both surprising and dramatic. The control group gained a lot of weight and also saw their insulin sensitivity plunge (meaning they became much more insulin resistant -- not a good outcome). The group who exercised after eating also gained weight but not nearly as much as the control group. And the group's insulin sensitivity went down, just as with the control group.

But the group who exercised before eating was a whole different story. This group, despite eating a horrible, weight gain-inducing diet, did not gain weight. rift gold Not only that, but the group's insulin sensitivity remained high and the bad diet did not make the group insulin resistant. "This study for the first time shows that fasted (empty stomach) training is more potent than fed training to facilitate adaptations in muscle and to improve ... glucose tolerance and insulin sensitivity," said the study's authors.

Conventional wisdom holds that it's always best to eat something before working out. Proponents point out that you need energy for working out -- energy that comes from carbohydrates. RIFT Platinum "Fat burns in a flame of carbohydrate," they say.

The problem is conventional wisdom is wrong.