Findings

What do systematic reviews say?

3 questions · 3 findings · 2 reviews · Heart

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 1 · 33.3%Moderate 1 · 33.3%High 1 · 33.3%

Cardiovascular events · people with or without existing cardiovascular disease, men and women

Higher polyunsaturated fatty acid (PUFA) showed no clear difference in cardiovascular events compared with lower PUFA (moderate certainty).

1 finding from 1 review

Polyunsaturated fatty acids for the primary and secondary prevention of cardiovascular disease 2018 · Cochrane Headline outcomes only
RR 0.89 [0.79, 1.01]
21 studies · 17799 participants
Moderate

Cardiovascular events · adults with or without existing CVD

High showed no clear difference in cardiovascular events compared with low alpha‐linolenic acid omega‐3 fats (low 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 0.95 [0.83, 1.07]
5 studies · 19327 participants
Low

Cardiovascular events · adults with or without existing CVD

High showed no clear difference in cardiovascular events 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 0.96 [0.92, 1.01]
43 studies · 140482 participants
High