David Nunan Profile picture
Sep 11, 2018 3 tweets 3 min read Twitter logo Read on Twitter
2 yrs ago I suggested to @bigfatsurprise for an overview of systematic reviews on #LCHF @bigfatsurprise said "I will go wherever the science leads"

@MEJLean & his colleagues have done it.


The methodology is sound - meaning the conclusions are robust /1
TL;DR: high quality meta-analyses reported little or no difference between diets.

"Publication acceptance & citations appear to favour apparently larger effect sizes above methodological quality.”

Mirrors our recent experience in this area:
Well done @MEJLean and co. Great use of appropriate & robust methodology to answer a question, that is currently generating a lot of noise.

Showing us noise is outweighing the signal and no diet more superior than another.

Here’s one example where ‘evidence-based’ applies.

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More from @dnunan79

Sep 5, 2018

So you know that @BJSM_BMJ sat fat editorial w '115K views' & 'no rebuttals’?


In a first for us, we also had to write a response to our own article: bjsm.bmj.com/content/early/…

@BJSM_BMJ @IMLahart @DrDuaneRD @Dr__Guess @exerciseworks @RD_Catherine @YoniFreedhoff @MatthewJDalby @DylanMacKayPhD @basem_uk @SamueleMarcora Our rebuttal was published 31 Aug behind the paywall of the BJSM.

We held off tweeting before all the pieces were in place to describe the backstory.

We do that here on @Pubpeer: pubpeer.com/publications/0…

TL'DR: strong evidence of editorial bias @BJSM_BMJ towards promotion of an anti-dietary guideline, pro low-carbohydrate high-fat diet, statin-conspiracy narrative and strategic demotion of any counter debate and arguments

Read 7 tweets
Aug 27, 2018
Good question Evelyn & one I've been pondering. Ioannidis recently said EBM's been 'hijacked' by vested interests (not just industry). He's referring to the 'E' in EBM. I agree. As do my colleagues bmj.com/content/357/bm… /1
For me the very word 'evidence-based' has also been hijacked to the point where I consider it meaningles in/of itself. You ask 'How do you know?'. It's simpler than you think. EBM is a SKILL. /2
And there are sub-skills within it. The overarching skill (& the hardest to master IMO) is the ability to use your clinical expertise in helping patients understand and inform their decisions by evidence (defining this is key and requires SKILL). /3
Read 11 tweets

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