We all want to have one consistent recommendation on what to do in the face of COVID-19, or heart disease, or weight loss etc..  Unfortunately we have seen advice change, at times a complete 180!   Experts are constantly looking at published studies of different treatments or actions, and make changes when new evidence comes to light.  Not every published study can be trusted - even researchers can fall to the same foibles as the rest of us - including poor work and misinterpretation, but also outright fraud.  It does take expertise to determine if a study has been done well, and to check and see if there is independent evidence to back up study results.  Sometimes it takes investigative reporters to uncover fraud.

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Unfortunately we are entering into some concerning times as many leading experts on disease are being replaced by people without such deep expertise and instead driven by an ideological agenda, while simultaneously the funding model for investigative reporting is also falling apart.

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