SCS - Can I take quercetin if I am a kidney patient (kidney-related health issue)?

As a kidney patient, I recommend asking your doctor if the products you are interested in would be right for you to take. Ingredients like quercetin, may increase or decrease the purpose of some medications and/or the activity related to the kidneys. 

If on any medications, showing your doctor the product label will also allow them to acknowledge if there are any other ingredients that may interact with treatment (or any ingredients that you would benefit from). Every body is different and asking your doctor for their professional opinion relating to your health, is the safest step to take!