The effect of adherence to high-quality dietary pattern on COVID-19 outcomes: A systematic review and meta-analysis

Rahmati et al., Journal of Medical Virology, doi:10.1002/jmv.28298

Nov 2022

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Meta analysis of 5 diet and COVID-19 studies, showing lower risk of COVID-19 cases and hospitalization with higher quality diets.

Currently there are 27 diet studies and meta analysis shows:

Outcome	Improvement
Mortality	20% lower [-15‑44%]
ICU admission	99% lower [79‑100%]
Hospitalization	72% lower [57‑82%]
Cases	34% fewer [23‑42%]

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risk of hospitalization, 62.0% lower, RR 0.38, p = 0.004.

risk of case, 28.0% lower, RR 0.72, p < 0.001.

Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates

Rahmati et al., 11 Nov 2022, peer-reviewed, 7 authors.

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