Background: Resveratrol's health benefits have received wide media coverage. Since resveratrol is usually associated with wine, informative texts about it should be prepared very carefully, since inaccurate website content could easily change people's wine consumption behavior. This study aimed to assess the quality of informative texts related to resveratrol on science journalism websites.
Methods: We analyzed 125 resveratrol posts on Science Daily, WebMD, and EurekAlert! published between 1990 and 2020.
Results: A higher number of posts was published in the years in which the number of people looking for information on the internet also increased. The increase can also be related to David Sinclair's notoriety, a fact that we called the "Sinclair effect". Most of the posts are replications of universities' press releases, mainly reporting resveratrol's health benefits, which resulted from preclinical studies and cannot be translated to humans. Most of them mention wine in the text and some in the title.
Conclusions: Wine is usually mentioned in headline resveratrol news, which could potentially influence wine consumption behavior. Scientists must intensify their efforts to communicate with the public to increase people's health literacy. Online news portals should have science journalists skilled in exploring scientific data and their translation into a simple and accurate language.
Keywords: health communication; health literacy; resveratrol; wine.