What do systematic reviews say?

Diet vs physical activity or standard treatment

• Diet, physical activity or both for prevention or delay of type 2 diabetes mellitus and its associated complications… 2017 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 530 participants
  Very low

Summary of findings table for metformin plus intensive diet and exercise vs intensive diet and exercise

The review found no eligible studies for this question.

• Metformin for prevention or delay of type 2 diabetes mellitus and its associated complications in persons at increased… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Adverse event outcomes for dietary combined with physical activity interventions vs usual care

• Diet, physical activity or both for prevention or delay of type 2 diabetes mellitus and its associated complications… 2017 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 250 participants
  Low

Dietary interventions vs control

• Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
  no estimate extracted
  5 studies · 1913 participants
  Very low

Dietary interventions vs control

• Interventions to prevent obesity in children aged 12 to 18 years old 2024 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 377 participants
  Low

Dietary intervention (probiotics) vs placebo

The review found no eligible studies for this question.

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

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

• Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
  no estimate extracted
  19 studies · 27882 participants
  Low

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

• Interventions to prevent obesity in children aged 12 to 18 years old 2024 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 2394 participants
  Very low

Abundant water intake vs no treatment

The review found no eligible studies for this question.

• Lifestyle and dietary interventions for Ménière’s disease 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Sleeping in darkness vs no treatment

The review found no eligible studies for this question.

• Lifestyle and dietary interventions for Ménière’s disease 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Specially processed cereals vs placebo

The review found no eligible studies for this question.

• Lifestyle and dietary interventions for Ménière’s disease 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Physical activity vs usual care

• Diet, physical activity or both for prevention or delay of type 2 diabetes mellitus and its associated complications… 2017 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 397 participants
  Very low

Intervention not reported

The review found no eligible studies for this question.

• Modified dietary fat intake for treatment of gallstone disease in people of any age 2024 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The intervention showed no clear difference in adverse events (serious adverse events) (low certainty).

• Diet, physical activity and behavioural interventions for the treatment of overweight or obese children from the age… 2017 · Cochrane Headline outcomes only
  RR 0.57 [0.17, 1.93]
  31 studies · 4096 participants
  Low