Quercetin. Similar to HCQ and CQ, quercetin also serves as a zinc ionophore. And like HCQ and CQ, quercetin appears to also work to block the binding of COVID virus spike proteins to the ACE2 receptors, impairing spike protein-virus entry into the cell, or impairing spike protein alonef from entering the cells (Pan et al., 2020; Derosa et al., 2021). Many other phytochemicals and bioflavonoids are demonstrating this ACE2 binding capacity as well (Pandey et al., 2020; Maiti and Banerjee, 2021).
Quercetin. Similar to HCQ and CQ, quercetin also serves as a zinc ionophore. And like HCQ and CQ, quercetin appears to also work to block the binding of COVID virus spike proteins to the ACE2 receptors, impairing spike protein-virus entry into the cell, or impairing spike protein alonef from entering the cells (Pan et al., 2020; Derosa et al., 2021). Many other phytochemicals and bioflavonoids are demonstrating this ACE2 binding capacity as well (Pandey et al., 2020; Maiti and Banerjee, 2021).
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