It has 18000 results just for weight loss, and if you look at different diets for weight loss, they are conflicting, so I wouldn't trust it.
I think PubMed is still the best thing we've got: read medical publications directly, even those are not clear, but at least closer to the data source.
According to this study[0] on the diagnostic (and triage) accuracy of online symptom checkers (including WebMD among others), the reliability is a coin toss.
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[ 4.5 ms ] story [ 25.2 ms ] threadI think PubMed is still the best thing we've got: read medical publications directly, even those are not clear, but at least closer to the data source.
[0] http://www.bmj.com/content/351/bmj.h3480/