Findings

What do systematic reviews say?

2 questions · 2 findings · 1 reviews

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 1 · 50%High 1 · 50%

All‐cause mortality – deaths · adults with or without existing CVD

High showed no clear difference in all‐cause mortality – deaths compared with low long‐chain omega‐3 fats (high certainty).

1 finding from 1 review

Omega‐3 fatty acids for the primary and secondary prevention of cardiovascular disease 2020 · Cochrane Headline outcomes only
RR 0.97 [0.93, 1.01]
45 studies · 143693 participants
High

All‐cause mortality – deaths · adults with or without existing CVD

High showed no clear difference in all‐cause mortality – deaths compared with low alpha‐linolenic acid omega‐3 fats (moderate certainty).

1 finding from 1 review

Omega‐3 fatty acids for the primary and secondary prevention of cardiovascular disease 2020 · Cochrane Headline outcomes only
RR 1.01 [0.84, 1.2]
5 studies · 19327 participants
Moderate