Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,310 questions · 1,358 findings · 214 reviews

No studies found 230 · 16.9%GRADE not reported 169 · 12.4%Very low 269 · 19.8%Low 277 · 20.4%Moderate 291 · 21.4%High 122 · 9%

Omega‐3 vs placebo

Any adverse event (combined: diarrhoea, urinary tract infection, falls, dizziness, agitations) · Apathy in people with mild‐to‐moderate Alzheimer's disease

Omega‐3 PUFA supplements showed no clear difference in any adverse event (combined: diarrhoea, urinary tract infection,… compared with placebo (moderate certainty).

1 finding from 1 review