Published 2020
Curcumin, capers, apples & onions are good sources of the zinc ionophore – Quercetin.
From ancient days to today, people have consumed plants not only as food but also a medicine for viral infections owing to their secondary metabolites long while their mechanism of action is not well elucidated yet.
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Curcumin acts as natural zinc ionophores and can promote the cellular uptake of zinc [which blocks viral replication] and can be used with zinc to increase the effectiveness of these compounds in the inhibition of the virus.
https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC7680693/
https://www.livestrong.com/article/301326-foods-with-the-highest-content-of-quercetin/
Recommendation: Moroccan stew