As fall and wintry weather descends upon us, researchers from Clemson University and the University of South Carolina have a simple solution to deal with the oncoming flu season: Onions!
Onions are rich in quercetin, a compound that boosts the immune system and may protect against influenza.
Quercetin belongs to a class of water-soluble plant pigments called flavonoids, and in tests on animals it appears that the substance negates susceptibility to flu, countering the effects of physical stress...
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