Ioannidis is back with some stinging rebuke of nutritional epidemiology:https://jamanetwork.com/journals/jama/fullarticle/2698337
My question is so should we question the general advice of eating vegetables, fruits and minimizing red meat to stay healthy?
Some of his recommendations: "Data from existing cohorts should become available for reanalysis by independent investigators. Their results should be presented in their totality for all nutritional factors measured, with standardized methods and standardized exploration of the sensitivity of conclusions to model and analysis choices. Readers and guideline developers may ignore hasty statements of causal inference and advocacy to public policy made by past nutritional epidemiology articles."
And I would say his recommendations are equally applicable to most observational studies, if not all. Nutritional research happen to get more attention and may have greater measurement issues than other areas.
Any thoughts?
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