Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

841 questions · 854 findings · 331 reviews

No studies found 462 · 54.1%GRADE not reported 67 · 7.8%Very low 153 · 17.9%Low 116 · 13.6%Moderate 51 · 6%High 5 · 0.6%

Zinc vs placebo

Health‐related quality of life · Patients with taste disturbances (dysgeusia/hypogeusia; idiopathic, zinc-deficient, or secondary to chronic renal failure)
1 finding from 1 review
  • Interventions for managing taste disturbances 2017 · Cochrane All outcomes
    Results (health-related quality of life): None of the studies reported data on health-related quality of life. Heckmann 2005 (zinc) reported that signs of depression were less severe (Beck Depression Inventory P<0.05;…
    1 study
    GRADE not reported

Intervention not reported

Quality of life ‐ not reported · stroke survivors with anxiety

The review found no eligible studies for this question.

1 finding from 1 review