Findings

What do systematic reviews say?

241 questions · 259 findings · 26 reviews · Headline outcomes only

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No studies found 52 · 20.1%GRADE not reported 20 · 7.7%Very low 76 · 29.3%Low 73 · 28.2%Moderate 27 · 10.4%High 11 · 4.2%

Dietary intervention (probiotics) vs placebo

Change in vertigo (global score) · adults with vestibular migraine

1 finding from 1 review

Non‐pharmacological interventions for prophylaxis of vestibular migraine 2023 · Cochrane Headline outcomes only
no estimate extracted
1 study · 204 participants
Very low

Dietary intervention (probiotics) vs placebo

Change in vertigo frequency · adults with vestibular migraine

1 finding from 1 review

Non‐pharmacological interventions for prophylaxis of vestibular migraine 2023 · Cochrane Headline outcomes only
no estimate extracted
1 study · 204 participants
Very low

Dietary intervention (probiotics) vs placebo

Serious adverse events · adults with vestibular migraine

The review found no eligible studies for this question.

1 finding from 1 review

Non‐pharmacological interventions for prophylaxis of vestibular migraine 2023 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

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

Health behaviour – Time point a: short‐term (up to 1 month post‐intervention) Multiple outcomes assessed and multiple measures used: (1) Fat‐related dietary habits Fat‐Related Diet Habits Questionnaire (score · migrants

1 finding from 1 review

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

Conditional cash transfers vs no intervention

Dietary diversity · children (0 to 17 years) and adults (≥ 18 years) or households

1 finding from 1 review

Community‐level interventions for improving access to food in low‐ and middle‐income countries 2020 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 3937 participants
Moderate

Food vouchers vs no intervention

Dietary diversity · poor households

1 finding from 1 review

Community‐level interventions for improving access to food in low‐ and middle‐income countries 2020 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 2459 participants
Low

Food and nutrition subsidies vs no intervention

Dietary diversity · primary schools and households and members of healthcare plan

1 finding from 1 review

Community‐level interventions for improving access to food in low‐ and middle‐income countries 2020 · Cochrane Headline outcomes only
no estimate extracted
1 study · 656 participants
Low

Social support vs no intervention

Dietary diversity · households at risk of food insecurity

1 finding from 1 review

Community‐level interventions for improving access to food in low‐ and middle‐income countries 2020 · Cochrane Headline outcomes only
no estimate extracted
1615 participants
Very low

Summary of findings: unconditional cash transfer vs no intervention

Dietary diversity · children (0 to 17 years) and adults (≥ 18 years) or households

1 finding from 1 review

Community‐level interventions for improving access to food in low‐ and middle‐income countries 2020 · Cochrane Headline outcomes only
no estimate extracted
10 studies · 12631 participants
Low

Targeted mass media intervention vs targeted mass media intervention plus personalised content

Intake meeting target from dietary guidelines, 3 months from baseline · adult, ethnic minority groups: Latino immigrants, elderly Chinese immigrants, self‐described Americans of African heritage

It is very uncertain whether targeted mass media intervention changes intake meeting target from dietary guidelines, 3 months from baseline compared with targeted mass media intervention plus personalised content (very low certainty).

1 finding from 1 review

Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases in adult,… 2017 · Cochrane Headline outcomes only
OR 5.53 [1.96, 15.58]
1 study · 718 participants
Very low

Targeted mass media intervention vs targeted mass media intervention plus personalised content

Changes in dietary composition, 12 months from baseline · adult, ethnic minority groups: Latino immigrants, elderly Chinese immigrants, self‐described Americans of African heritage

1 finding from 1 review

Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases in adult,… 2017 · Cochrane Headline outcomes only
no estimate extracted
1 study · 286 participants
Very low

Targeted mass media intervention vs no intervention

Changes in dietary composition, 12 months from baseline · adult, ethnic minority group: self‐described Americans of African heritage

1 finding from 1 review

Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases in adult,… 2017 · Cochrane Headline outcomes only
no estimate extracted
1 study · 154 participants
Very low

Intervention not reported

Salt intake in grams per day ‐ all eligible studies that provided sufficient data for quantitative analysis of overall impact (n = 10 countries) · ‐level interventions in national government jurisdictions to reduce sodium consumption

1 finding from 1 review

Population‐level interventions in government jurisdictions for dietary sodium reduction 2016 · Cochrane Headline outcomes only
no estimate extracted
12 studies · 64798 participants
Very low

Intervention not reported

Salt intake in grams per day ‐ subset of initiatives that are multi‐component and incorporate activities of a structural nature (n = 7 countries) · ‐level interventions in national government jurisdictions to reduce sodium consumption

1 finding from 1 review

Population‐level interventions in government jurisdictions for dietary sodium reduction 2016 · Cochrane Headline outcomes only
no estimate extracted
9 studies · 34227 participants
Very low

Intervention not reported

Salt intake in grams per day ‐ women only (n = 9 countries) · ‐level interventions in national government jurisdictions to reduce sodium consumption

1 finding from 1 review

Population‐level interventions in government jurisdictions for dietary sodium reduction 2016 · Cochrane Headline outcomes only
no estimate extracted
11 studies · 27184 participants
Very low

Intervention not reported

Salt intake in grams per day ‐ men only (n = 9 countries) · ‐level interventions in national government jurisdictions to reduce sodium consumption

1 finding from 1 review

Population‐level interventions in government jurisdictions for dietary sodium reduction 2016 · Cochrane Headline outcomes only
no estimate extracted
11 studies · 22977 participants
Very low

Physical activity vs dietary interventions

IBS symptoms · people with IBS

1 finding from 1 review

Physical activity for treatment of irritable bowel syndrome 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 59 participants
Low

Physical activity vs dietary interventions

Quality of life – 12 weeks · people with IBS

1 finding from 1 review

Physical activity for treatment of irritable bowel syndrome 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 59 participants
Low

Physical activity vs dietary interventions

Quality of life – 24 weeks · people with IBS

1 finding from 1 review

Physical activity for treatment of irritable bowel syndrome 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 59 participants
Low

Physical activity vs dietary interventions

Abdominal pain · people with IBS

2 findings from 1 review

Physical activity for treatment of irritable bowel syndrome 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 59 participants
Low
Physical activity for treatment of irritable bowel syndrome 2022 · Cochrane Headline outcomes only
no estimate extracted
1 study · 59 participants
Low