If you've come to treat that daily glass of wine as your fountain of youth, it may be time to reconsider.

The notion that consuming wine and chocolate, two of our favorite vices, could lead to longer, healthier lives is a tantalizing one. Scientists first hinted at the possibility in 2006 after feeding obese mice a diet high in the compound resveratrol — which occurs naturally in grape skins, certain berries, chocolate and other plants. They noticed that the mice lived as long as obese mice that didn't get the compound. The ones who got the resveratrol also had fewer diseases associated with aging.

Soon, resveratrol became the darling trait of superfoods like berries and chocolate. Dr. Oz put resveratrol-rich foods on his "Ultimate Anti-Aging Checklist."

But resveratrol might not be the health booster it's been cracked up to be – at least if we're getting it from food alone. In a study published Monday in JAMA Internal Medicine, a team of scientists report that dietary resveratrol had no apparent association with longevity or inflammation, or rates of cancer and cardiovascular disease.

Richard Semba, of Johns Hopkins University's School of Medicine, led the study of 783 elderly adults from Tuscany's Chianti region, famed for its vineyards of Sangiovese.

First, the scientists analyzed samples of each participant's urine, which Semba calls "the best method [for tracking dietary resveratrol]. It's the gold standard." Then, the researchers followed the 65-and-older men and women for the next nine years. What happened in that time suggests that the hype over resveratrol might be unfounded.

Thirty-four percent of the participants died — which was expected, since they were advanced in age. The thing is, urinary resveratrol levels in those who lived through the study were no higher or lower than those of the men and women who died before its conclusion. Nor did resveratrol levels appear to reduce the development of cancer or cardiovascular disease, which afflicted some participants who were free of the ailments when the research began.