Quercetin is a bioflavanoid. Should be taken with Vitamin C. You’re better off being on the iodine protocol which is iodine/iodide, selenium, vitamin C magnesium & salt. This is the protocol that protects against bacteria, fungus, viruses and cancer.
I think i remember that iodine might be harsh on kidneys? I know contrast dye can be bad- which is iodine i believe? I’ll have to check that protocol out- but seems i remember it might be harsh- maybe it was something else-
“You’re better off being on the iodine protocol”
Do you have a link to that? First I’ve heard of it