Name: How Quercetin Works Like Hydroxychloroquine to Stop Viruses
Uploaded: 2026-03-04T18:54:49.000Z
Description: Inflammation causing respiratory failure is the main reason people die from COVID-19. How can quercetin help to curb this and other inflammation issues?

Brendon Fallon is the host and executive producer of NTD's "Vital Signs," a health show that zooms in on the important matters of health that come up in everyday life—connecting the dots across the broad canvas of our holistic wellbeing.


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Quercetin is an anti-inflammatory, antiviral compound used to treat COVID-19, influenza, and other viruses.

Inflammation causing respiratory failure is the main reason people die from COVID-19. How can quercetin help to curb this and other inflammation issues?

Quercetin can shut down inflammatory signals in a similar way to the antihistamine version of Advil. It is also used to treat allergies.

How does quercetin stop virus replication at three levels? And how much is a safe amount to take?

We break down the all-star compound quercetin on Vital Signs with Brendon Fallon.
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<h5>Some of the texts consulted:</h5>
Quercetin, Inflammation and Immunity
<a href="https://pubmed.ncbi.nlm.nih.gov/26999194/" target="_blank" rel="noopener noopenner noreferrer">https://pubmed.ncbi.nlm.nih.gov/26999194/</a>

Quercetin for the treatment of COVID-19 patients: A systematic review and meta-analysis
<a href="https://pubmed.ncbi.nlm.nih.gov/36779438/" target="_blank" rel="noopener noopenner noreferrer">https://pubmed.ncbi.nlm.nih.gov/36779438/</a>

Mitochondrial antiviral signaling protein plays a major role in induction of the fish innate immune response against RNA and DNA viruses
<a href="https://pubmed.ncbi.nlm.nih.gov/19474100/" target="_blank" rel="noopener noopenner noreferrer">https://pubmed.ncbi.nlm.nih.gov/19474100/</a>
<h5><span style="font-weight: 400;">---------------------------------------------------------------------------------------------------------------------------------------</span></h5>
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<span style="font-weight: 400;">Vital Signs’ host, guests, and contributors offer general information on improving health and wellness. This is not intended as diagnosis or medical advice. You should consult your medical doctor or holistic doctor before enacting any suggested strategies for health and wellness improvement, including those in relation to preventing or treating specific diseases featured on this program.</span>

<span style="font-weight: 400;">Views expressed in this video are opinions of the host and guests, and do not necessarily reflect the views of NTD.</span>

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