Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,231 questions · 3,354 findings · 394 reviews

No studies found 803 · 23.9%GRADE not reported 267 · 8%Very low 757 · 22.6%Low 859 · 25.6%Moderate 486 · 14.5%High 182 · 5.4%

Dietary fibre (all study interventions) vs control

Number of participantswith at least one recurrent adenoma · people with a history of colorectal adenomas

Dietary fibre (all study interventions) showed no clear difference in number of participantswith at least one recurrent adenoma compared with control (low certainty).

1 finding from 1 review

Dietary fibre (all study interventions) vs control

Number of participantswith at least one adenoma 1 cm or greater · people with a history of colorectal adenomas

Dietary fibre (all study interventions) showed no clear difference in number of participantswith at least one adenoma 1 cm or greater compared with control (low certainty).

1 finding from 1 review