What do systematic reviews say?

All diet and/or exercise interventions vs (Optimised) usual care

All diet and/or exercise interventions showed no clear difference in macrosomia Infant birthweight > 4000 g compared with standard/other care (high certainty).

• Diet or exercise, or both, for preventing excessive weight gain in pregnancy 2015 · Cochrane Headline outcomes only
  RR 0.93 [0.86, 1.02]
  27 studies · 8598 participants
  High

Dietary fibre (all study interventions) vs control

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

• Dietary fibre for the prevention of recurrent colorectal adenomas and carcinomas 2017 · Cochrane Headline outcomes only
  RR 1.04 [0.95, 1.13]
  5 studies · 3641 participants
  Low

Dietary fibre (all study interventions) vs control

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

• Dietary fibre for the prevention of recurrent colorectal adenomas and carcinomas 2017 · Cochrane Headline outcomes only
  RR 1.06 [0.94, 1.2]
  2 studies · 2542 participants
  Low

Dietary fibre (all study interventions) vs control

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).

• Dietary fibre for the prevention of recurrent colorectal adenomas and carcinomas 2017 · Cochrane Headline outcomes only
  RR 0.99 [0.82, 1.2]
  4 studies · 3224 participants
  Low

Dietary fibre (all study interventions) vs control

Dietary fibre (all study interventions) may leads to higher number of participantsdiagnosed with colorectal cancer compared with control (low certainty).

• Dietary fibre for the prevention of recurrent colorectal adenomas and carcinomas 2017 · Cochrane Headline outcomes only
  RR 2.7 [1.07, 6.85]
  2 studies · 2794 participants
  Low

Culturally adapted health literacy skills building course vs no/unrelated health literacy intervention

• Interventions for improving health literacy in migrants 2023 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 229 participants
  Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  20 studies · 24043 participants
  Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  25 studies · 19498 participants
  Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  6 studies · 16543 participants
  Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  8 studies · 16583 participants
  Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  16 studies · 6261 participants
  Moderate

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  11 studies · 5536 participants
  Moderate

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 42 participants
  Very low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 779 participants
  High

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 282 participants
  Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 779 participants
  High

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 110 participants
  Very low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 652 participants
  Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 983 participants
  Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

• Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 709 participants
  Low