LMAO - I was just reading this and was yelling it’s QUERCETIN at the screen. You beat me to it.
Quercetin is a flavonoid and back when we first began to talk about it early in the pandemic I found papers talking about goldenrod being a good source (and antioxidant).
Quercetin is a poor man’s HCQ. That dreaded and deadly drug that Trump (and others) took for Covid.
Yup I suspected it was because it was rich in quercitrin, so I looked it up to confirm. Just don’t use it if you’re allergic to ragweed.
Concord grapes have a lot of quercetin iirc, also blackberries. And a fair number of other foods. Red onions.