What do systematic reviews say?

Dietary interventions vs usual care

• Lifestyle changes for treating psoriasis 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 36 participants
  Moderate

Dietary interventions vs usual care

The review found no eligible studies for this question.

• Lifestyle changes for treating psoriasis 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Dietary interventions vs usual care

• Lifestyle changes for treating psoriasis 2019 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 78 participants
  Moderate

Dietary advice vs standard‐of‐care therapy

It is very uncertain whether dietary advice interventions changes gestational diabetes compared with standard care (maternal outcomes) (very low certainty).

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  RR 0.6 [0.35, 1.04]
  5 studies · 1279 participants
  Very low

Dietary advice vs standard‐of‐care therapy

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Dietary advice vs standard‐of‐care therapy

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Dietary advice vs standard‐of‐care therapy

Dietary advice interventions showed no clear difference in childhood/adulthood adiposity: skinfold thickness at 6 months (mm) compared with standard care (child outcomes) (low certainty).

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 132 participants
  Low

Dietary advice vs standard‐of‐care therapy

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Dietary advice vs standard‐of‐care therapy

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Dietary advice vs standard‐of‐care therapy

Dietary advice interventions may leads to lower hypertensive disorders of pregnancy (pregnancy‐induced hypertension) compared with standard care (maternal outcomes) (low certainty).

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  RR 0.3 [0.1, 0.88]
  2 studies · 282 participants
  Low

Dietary advice vs standard‐of‐care therapy

Dietary advice interventions showed no clear difference in hypertensive disorders of pregnancy (pre‐eclampsia) compared with standard care (maternal outcomes) (low certainty).

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  RR 0.61 [0.25, 1.46]
  2 studies · 282 participants
  Low

Dietary advice vs standard‐of‐care therapy

Dietary advice interventions showed no clear difference in caesarean section compared with standard care (maternal outcomes) (low certainty).

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  RR 0.98 [0.78, 1.24]
  4 studies · 1194 participants
  Low

Dietary advice vs standard‐of‐care therapy

It is very uncertain whether dietary advice interventions changes perineal trauma (anal sphincter injury) compared with standard care (maternal outcomes) (very low certainty).

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  RR 0.83 [0.23, 3.08]
  1 study · 759 participants
  Very low

Dietary advice vs standard‐of‐care therapy

Dietary advice interventions showed no clear difference in gestational weight gain (kg) compared with standard care (maternal outcomes) (low certainty).

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  no estimate extracted
  5 studies · 1336 participants
  Low

Dietary advice vs standard‐of‐care therapy

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Dietary advice vs standard‐of‐care therapy

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 159 participants
  Very low

Dietary advice vs standard‐of‐care therapy

• Dietary advice interventions in pregnancy for preventing gestational diabetes mellitus 2017 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Mediterranean dietary intervention vs no intervention or minimal intervention

The review found no eligible studies for this question.

• Mediterranean‐style diet for the primary and secondary prevention of cardiovascular disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Mediterranean dietary intervention vs another dietary intervention

Mediterranean dietary intervention showed no clear difference in CVD mortality compared with another dietary intervention (low certainty).

• Mediterranean‐style diet for the primary and secondary prevention of cardiovascular disease 2019 · Cochrane Headline outcomes only
  HR 0.81 [0.5, 1.32]
  1 study · 7447 participants
  Low

Mediterranean dietary intervention vs another dietary intervention

Mediterranean dietary intervention showed no clear difference in total mortality compared with another dietary intervention (low certainty).

• Mediterranean‐style diet for the primary and secondary prevention of cardiovascular disease 2019 · Cochrane Headline outcomes only
  HR 1 [0.81, 1.24]
  1 study · 7447 participants
  Low