There is currently no specific early-stage therapeutic treatment available for COVID-19.~Dietary supplements curcumin, quercetin and vitamin D3 have shown strong antioxidant, anti-inflammatory/immunomodulatory and broad-spectrum antiviral effects. The present study is focused to test the combination of oral curcumin, quercetin and vitamin D3 supplements as complementary therapy for outpatients with mild to moderate symptoms of COVID-19 infection.
The present study is aimed to investigate the treatment benefits of a combination of dietary supplements quercetin, curcumin and vitamin D3 as add-on therapy to the routine care for early mild symptoms of COVID-19 infection in outpatients setting.