Pine bark extract put to the test against lingering COVID symptoms

NCT ID NCT05890534

First seen May 02, 2026 · Last updated May 17, 2026 · Updated 2 times

Summary

This study tested whether a natural supplement called Pycnogenol (from pine bark) can improve health and reduce symptoms in people with Long COVID. 153 adults with ongoing fatigue, brain fog, or breathing problems took either Pycnogenol or a placebo for 12 weeks. Researchers measured changes in overall health and specific symptoms to see if the supplement helps.

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Contacts and locations

Locations

  • University of Zurich, Epidemiology, Biostatistics and Prevention Institute, Department of Public & Global Health

    Zurich, 8001, Switzerland

Conditions

Explore the condition pages connected to this study.