Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

87 questions · 87 findings · 1 reviews

No studies found 47 · 54%GRADE not reported 0 · 0%Very low 38 · 43.7%Low 1 · 1.1%Moderate 1 · 1.1%High 0 · 0%

Pine bark extract vs placebo

Withdrawal from study because of pine bark extract supplements · patients with osteoarthritis of the knee

Pine bark extract showed no clear difference in withdrawal from study because of pine bark extract supplements compared with placebo (moderate certainty).

1 finding from 1 review

Pine bark extract vs placebo

Improvement of asthma symptoms; · children and adults with asthma diagnosed by American Thoracic Society criteria

It is very uncertain whether pine bark extract changes decrease in asthma symptoms compared with placebo (very low certainty).

1 finding from 1 review