Well, Duke University researchers now say let them eat cake -- and candy bars, too, for that matter.
In their new study, the scientists found no evidence of the so-called sugar high.
Richard Surwit, chief of medical psychology at Duke University Medical Center, says there was no evidence that those on a diet containing sugar suffered any of the hyperactivity or mood swings typically associated with the sugar high.
In fact, Surwit says those on a calorie-controlled diet that contained sugar lost the same amount of weight as those on a no-sugar diet.
So, how did sugar get its bad name?
Surwit says the government started the myth during World War II to discourage the use of sugar, which was severely rationed. He adds that any effect from foods such as candy are probably due to the caffeine found in chocolate.
The American DieteticAssociation discusses sugar's effects on your health.