Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

13 questions · 13 findings · 4 reviews

No studies found 3 · 23.1%GRADE not reported 0 · 0%Very low 6 · 46.2%Low 3 · 23.1%Moderate 1 · 7.7%High 0 · 0%

Omega‐3 vs placebo

Adverse effects: neurological, extrapyramidal UKU (events) Medium‐term · people in the prodromal stage of psychosis

Group A: omega‐3 fatty acids showed no clear difference in adverse effects: neurological, extrapyramidal UKU (events) Medium‐term compared with placebo (low certainty).

1 finding from 1 review

Omega‐3 fatty acids and antioxidants vs standard diet or placebo

Adverse effects (cardiac) · adults (aged 18 years or older), mechanically ventilated participants with ARDS as defined by the Berlin definition of ARDS or, for older…

It is very uncertain whether omega‐3 fatty acids and antioxidants changes cardiac adverse events (study author reported anytime during study… compared with placebo or standard nutrition (very low certainty).

1 finding from 1 review

Omega‐3 fatty acids and antioxidants vs standard diet or placebo

Study author‐reported adverse events · adults (aged 18 years or older), mechanically ventilated participants with ARDS as defined by the Berlin definition of ARDS or, for older…

It is very uncertain whether omega‐3 fatty acids and antioxidants changes total number of adverse events (study author reported anytime during… compared with placebo or standard nutrition (very low certainty).

1 finding from 1 review

Omega‐3 fatty acids and antioxidants vs standard diet or placebo

Gastrointestinal adverse events · adults (aged 18 years or older), mechanically ventilated participants with ARDS as defined by the Berlin definition of ARDS or, for older…

It is very uncertain whether omega‐3 fatty acids and antioxidants changes gastrointestinal adverse events (study author reported anytime… compared with placebo or standard nutrition (very low certainty).

1 finding from 1 review