Just because it's been published in a peer reviewed journal doesn't make it fact. There are plenty of publications which have been accepted but have been unrepeatable or subject to innate bias or methodological error that isn't picked up on by the reviewers (or they think it's worth publishing anyway). There are also publications out there which have been widely disproven. The jury remains out until we can see the complete paper, especially the M&Ms to check the quality of the data, the strength of the experimental design and the robustness of the statistical analysis to determine for ourselves whether this publication actually tells us anything...