Review for 10.1186/s12876-021-01612-z (2021)

Reviewer’s report
Title: 
Dietary patterns and risk of non-alcoholic fatty liver disease
Version: 
1 
Date: 
04 Nov 2020
Reviewer's report:
This is an interesting retrospective, case-control study, conducted in 225 newly
diagnosed NAFLD patients and 450 controls.
The Authors investigated the relationship between dietary patterns and NAFLD
and conclude that "western 50 dietary pattern" had a positive significant effect
on NAFLD occurrence. In contrast, "healthy 51 dietary pattern" was associated
with a decreased risk of NAFLD.
In my opinion the manuscript can be accepted for publication after a minor
revision 
I suggest to the Authors to discuss the protective role of Mediterranean diet for
NAFLD.
Moreover, since the study is retrospective, it should be reported as a limitation of
the study that 
associations may be not causal.
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Is the study design appropriate to answer the research question (including the use
of appropriate controls), and are the conclusions supported by the evidence
presented?
Yes
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Yes
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Yes
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from apparent manipulation?
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