Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

195 questions · 203 findings · 16 reviews

No studies found 24 · 11.8%GRADE not reported 25 · 12.3%Very low 41 · 20.2%Low 65 · 32%Moderate 37 · 18.2%High 11 · 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