True!
I’d like to add that in my personal experience, quercetin with zinc is a cure for the common cold.
I don’t think so. I’ve been taking Quercetin, zinc, vitamin D, quinine, resveratrol, etc and I got two colds after getting Covid. Did it help with Covid, I don’t know but I’m 53, in good shape and was in/out with Covid in 3 days.
Oh and I over dosed on “Airborne” as well. I think that helps too