Evaluation of the Clinical Effects of an Antiviral, Immunostimulant and Antioxidant Phytotherapy in Patients Suffering from COVID-19 Infection: An Observational Pilot Study
et al., International Journal of Translational Medicine,
Retrospective case series of 240 patients in Italy in 2020, up to 96 years old, showing no mortality and 1.6% hospitalization with early treatment including vitamin C, quercetin, and green tea and red wine polyphenols.
The formulation was based on SARS-CoV-2 molecular docking studies. Low bioavailability is a known issue for polyphenols. Authors note that bioavailability may be improved with combinations of polyphenols which may have a synergistic effect, and via consumption with dietary fat.
Ortore et al., 16 Jun 2022, Italy, peer-reviewed, 12 authors, study period September 2020 - December 2021.
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