Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

966 questions · 1,015 findings · 90 reviews · Headline outcomes only

No studies found 256 · 25.2%GRADE not reported 62 · 6.1%Very low 271 · 26.7%Low 269 · 26.5%Moderate 111 · 10.9%High 46 · 4.5%

Summary of findings: strategies to improve the implementation of workplace‐based health promotion vs no implementation strategy

Implementation of workplace‐based policies or practices targeting diet, physical activity, obesity, tobacco use or alcohol use · workplace employees

Summary of findings: strategies to improve the implementation of… showed no clear difference in implementation of workplace‐based policies or practices targeting… compared with no implementation strategy (low certainty).

1 finding from 1 review

Dietary interventions vs usual care

Percentage of participants reaching PASI 75 · psoriasis

Dietary intervention may leads to higher severity of psoriasis PASI 75 (the proportion of participants… compared with usual care (low certainty).

1 finding from 1 review

Dietary modifications (counselling or dietary change) vs no nutritional intervention

Diarrhoea · People undergoing RT for pelvic cancer

Dietary modification probably leads to lower diarrhoea at end of treatment compared with no nutritional intervention (moderate certainty).

1 finding from 1 review