Just like everyone else, doctors, researchers, and patients often disagree about the effects of treatments. This may be because what they say is not based on a careful summary of fair comparisons of treatments.
People should not decide how trustworthy a treatment claim is based only on who made the claim or how experienced, well known, or “expert” they are; or where the claim was made. Claims that are not based on fair comparisons can be found in sources that are well-respected as well as ones that are not.
REMEMBER: Just because a treatment claim is made by an expert or authority, or comes from a well-respected source, you cannot be sure that it is trustworthy unless it is clearly based on a careful summary of fair comparisons.