Submitted: Quercetin and Zinc for anti-viral and immune support against Covid-19


As many of you know there is a race to find a treatment or vaccine for Covid-19 and many potential anti-virals are currently being looked at closely. One of them, Hydroxychloriquine, has been receiving a lot of attention lately as anecdotal evidence suggests it could help fight the severity of the virus and potentially be used early on to prevent progression of the virus. The fact that it’s been widely used for decades for other conditions has added to its legitimacy and currently there are many studies going on that will biezras Hashem reveal that it is effective at treating Covid-19. Dr Zelenko has already started prescribing it in the outpatient setting to high risk individuals or for people with shortness of breath, and he has shown a high success rate. Because of its potential negative side effects it’s not recommended yet for lower to moderate risk patients, although that too might change in the near future as more studies and information come forth. Other drugs are also being carefully looked at such as Gilead’s Remdesivir, which has shown to be very promising. But it is currently in phase 3 trials and hasn’t been approved yet by the FDA although that too may change as trial data comes out in the very near future. What I would like to share is a potential treatment that is not very well known yet but is generally used as a supplement, Quercetin. Quercetin, being a safe supplement allows even low risk Covid-19 sufferers a potential treatment, especially if taken early on to prevent symptoms from getting worse or prolonged. I am not a doctor nor a nutritionist so I don’t want to give out medical advice, however I do want to bring it to people’s attention so that at least they can be well informed and thereby ask their medical provider if they should take Quercitin and Zinc or not.

Quercetin is a bioflavonoid supplement that has been shown in a study(1) to act as a zinc ionophore(allowing access of zinc into cells to inhibit virus replication). It is very similar in this respect to Hydroxychloriquine which also works as a zinc ionophore. It is also believed to block viruses from entering cells in the first place, lowering the ‘viral load’. A study published by the University of Tennessee and Oak Ridge National Labs used the most powerful IBM supercomputer to model which FDA approved compounds or supplements might interfere with the coronavirus binding to cells. Quercetin was listed as number 5 on that list(2). Additionally one study shows it has anti inflammatory properties, which could help limit the inflammatory response or the cytokine storm caused by Covid19. (3)

Dr Michel Chrétien and Dr Majambu Mbikay are well known Montreal researchers who have been researching the effects of Quercetin for decades and have found it to inhibit various bacteria and viruses. They’ve seen positive results in mice with its use against Ebola and Zika(4). It’s also been tested with influenza(5) and SARS(6). Now they are in the process of testing it with Covid-19(7)(8).While it’s not yet proven, the basic mechanism suggests it would be effective although they don’t want to give a false sense of hope until clinical trials prove it to be so. Either way it is already approved by the FDA for general consumption purposes and is available currently in vitamin stores. It’s naturally found in capers, apples, red onions,dill and elderberries but generally at a significantly lower amount than supplements which are generally at about 500mgs-1000mg per dose. Again it has not been proven as a treatment and there isn’t enough data yet to prove its efficacy but it has a lot potential in theory. Zinc should also be taken(perhaps about 30mgs a day) as it has potential to inhibit virus replication once in the cell and the two supplements compliment each other. Recently Dr Joshua Ritchie of Refuah Institute put out a video strongly suggesting people take Zinc as an anti-viral and immune booster, especially since he believes many (a third of the population) are deficient in zinc. Dr Richard Roberts also suggested taking a daily zinc supplement as a preventative.Although everyone should consult their healthcare provider first, I suggest people take these supplements at the onset of symptoms to inhibit the virus from progressing further given the fact that they are generally safe to take for standard health reasons (Quercetin is usually taken for its anti histamine and antioxidant properties). Obviously it needs to be taken in moderation as too much zinc could cause copper deficiencies and too much Quercetin may potentially have negative side effects.Again I am not a doctor. The information provided is just to bring awareness to a potential anti-viral and immune boosting treatment or preventative. At the very least it may lower the intensity and duration of the virus. Therefore while I suggest people advocate to be prescribed Hydroxychloriquine whenever possible, given that it’s currently the best option, certain criteria might prevent a doctor from prescribing it, especially in mild to moderate cases. Therefore at least this may potentially serve as a safe alternative in those cases. Also health care workers and first responders can use it as a safe preventative. 

May Hashem Who is the Source of all refuah quickly bring an end to this Mageifa and a Refuah Shileima to all those that are sick.
Sincerely, A fellow Yid










  1. It is very, very important to monitor the oxygen levels of EVERY person sick with Corona/Covid-19. Especially if they have been sick for more than a few days. EVEN if they are not showing any difficulty breathing. This can be done easily using a small machine called a pulse-ox which can be obtained from pharmacies or bikur cholim. Detecting and treating low oxygen levels as early as possible can prevent the situation from becoming critical ch’v. If caught early enough, the patient can be kept at home with an oxygen machine keeping the oxygen levels up while medications help the lungs heal. (Corona virus tends to start as fever, lethargy etc. but often moves to the lungs causing pneumonia and/or other lung issues).

    Some remedies/medications that have been helpful for Corona include: Zinc (Very important), Garlic, Lemon, Vitamin C, Warm drinks, plenty of rest, ZPack (aka Azythromycin), Hydroxychloroquine (ideally one should have an EKG done to monitor QTC levels before starting this medication), Quercetin (nutritional supplement similar to Hydroxychloroquine). (Always contact a medical professional before beginning any medicinal or nutritional remedy.) It is also important to stay hydrated by drinking any drink but especially vitamin water, Gatorade etc. and eating salty foods such as pretzels, etc.

    Covid-19 is very contagious and therefore it is very important to wash/sanitize hands frequently and not touch one’s face even if they have been wearing gloves because Corona virus seems to stay for a considerable amount of time even on surfaces.

  2. Just want to ADD

    Quercetin has been tested for Zika and Ebola the dosage they gave was 50mg to 100mg per Kilo (kilo is about 2.2 lbs)

    A person weighing 100 lbs would take between about 2273 mg – 4545 mg of Quercetin

    I would stick to the 50 mg per 2.2 lbs of Quercetin and do it for 5 days. With that I would add 50 mg of Zinc

    Also take
    Vitamin C 1000mg to 5000mg
    Vitamin D 5000iu (unless one knows they are deficient. If one has a deficiency, they must take much higher dosages, speak to your doctor)

  3. If people have a hard time with catching their breath, using a nebulizer with 2 drops lugols iodine and 1/2 tsp saline works wonders . Some people have been using colloidal silver too. They all work amazing . Saved many people from going to the hospital.


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