Findings

What do systematic reviews say?

177 questions · 184 findings · 14 reviews · Headline outcomes only

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No studies found 21 · 11.4%GRADE not reported 11 · 6%Very low 41 · 22.3%Low 63 · 34.2%Moderate 37 · 20.1%High 11 · 6%

Dietary interventions vs usual care

Participant adherence to intervention · psoriasis

Dietary intervention showed no clear difference in adherence to the intervention compared with usual care (low certainty).

1 finding from 1 review

Lifestyle changes for treating psoriasis 2019 · Cochrane Headline outcomes only
RR 1.26 [0.76, 2.09]
2 studies · 105 participants
Low

Dietary behavior change interventions with a caregiver component vs interventions without a caregiver component

Children's percentage of total energy intake from saturated fat Measured by food frequency questionnaire and 24‐hour recall · children aged 7 to 18 years

1 finding from 1 review

Caregiver involvement in interventions for improving children's dietary intake and physical activity behaviors 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 207 participants
Low

Dietary behavior change interventions with a caregiver component vs interventions without a caregiver component

Children's sodium intake (g/d) measured by food record Assessed at end of intervention (9 months) · children aged 7 to 18 years

1 finding from 1 review

Caregiver involvement in interventions for improving children's dietary intake and physical activity behaviors 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 207 participants
Low

Dietary interventions vs physical activity interventions

Body‐mass index (BMI) · children aged 6‐12 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 4917 participants
High

Dietary interventions vs physical activity interventions

Body‐mass index z score (zBMI) · children aged 6‐12 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 1205 participants
High

Combined dietary and physical activity interventions with a caregiver component vs interventions without a caregiver component

Adverse effects (not reported by intervention arm) · children aged 4 to 14 years

The review found no eligible studies for this question.

1 finding from 1 review

Caregiver involvement in interventions for improving children's dietary intake and physical activity behaviors 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Dietary interventions vs placebo or other interventions

Infant sleep duration per 24 h at 7, 14 and 21 days from start of intervention · infants with colic defined by recognised criteria

The review found no eligible studies for this question.

1 finding from 1 review

Dietary modifications for infantile colic 2018 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Dietary interventions vs diet and physical activity interventions combined

Body‐mass index (BMI) · children aged 6‐12 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 3971 participants
High

Dietary interventions vs diet and physical activity interventions combined

Body‐mass index z score (zBMI) · children aged 6‐12 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 3971 participants
High

Dietary interventions vs control

All‐cause mortality · people living beyond cancer

Dietary intervention showed no clear difference in mortality compared with control (low certainty).

1 finding from 1 review

Dietary interventions for adult cancer survivors 2019 · Cochrane Headline outcomes only
HR 0.98 [0.77, 1.23]
1 study · 3107 participants
Low

Dietary interventions vs control

Secondary cancers · people living beyond cancer

Dietary intervention showed no clear difference in secondary cancers compared with control (low certainty).

1 finding from 1 review

Dietary interventions for adult cancer survivors 2019 · Cochrane Headline outcomes only
RR 0.99 [0.84, 1.15]
1 study · 3107 participants
Low

Dietary interventions vs control

Children's fruit and vegetable intake (servings/d) Measured by food frequency questionnaire · people living beyond cancer

1 finding from 1 review

Dietary interventions for adult cancer survivors 2019 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 834 participants
Moderate

Dietary interventions vs control

Fibre intake assessed as g · people living beyond cancer

1 finding from 1 review

Dietary interventions for adult cancer survivors 2019 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 3127 participants
Very low

Dietary interventions vs control

Diet quality · people living beyond cancer

1 finding from 1 review

Dietary interventions for adult cancer survivors 2019 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 747 participants
Moderate

Dietary interventions vs control

Body‐mass index (BMI) · people living beyond cancer

1 finding from 1 review

Dietary interventions for adult cancer survivors 2019 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 777 participants
Moderate

Dietary interventions vs control

Waist‐to‐hip circumference assessed as cm · people living beyond cancer

1 finding from 1 review

Dietary interventions for adult cancer survivors 2019 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 106 participants
Low

Dietary interventions vs control

BMI short‐term (12 weeks from baseline to < 9 months) · children aged 5 to 11 years

1 finding from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 2107 participants
Low

Dietary interventions vs control

Body‐mass index (BMI) · children aged 5 to 11 years

2 findings from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
9 studies · 6815 participants
Low
Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 945 participants
Moderate

Dietary interventions vs control

zBMI short term (12 weeks from baseline to < 9 months) · children aged 5 to 11 years

1 finding from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
8 studies · 3695 participants
Moderate

Dietary interventions vs control

zBMI medium term (9 months to < 15 months) · children aged 5 to 11 years

1 finding from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
9 studies · 7048 participants
Moderate