Can I Take Quercetin and Zinc Together?
Zinc deficiency is very common especially in the elderly, diabetics, cancer patients, asthma, immunosuppressed and obese - all of which have higher levels of mortality for COVID-19. Furthermore, zinc deficiency is associated with increased risk of infectious disease, pneumonia and severity of COVID-19. Conversely, zinc supplementation is associated with a significant decrease in COVID-19 mortality as long as it is delivered with a zinc ionophore (source).
In short, a balanced zinc homeostasis is essential. Zinc supplementation improves the mucociliary clearance, strengthens the integrity of the epithelium, decreases viral replication, preserves antiviral immunity, attenuates the risk of hyper-inflammation, supports anti-oxidative effects and thus reduces lung damage and minimizes secondary infections. Especially older subjects, patients with chronic diseases and most of the remaining COVID-19 risk groups would most likely benefit.It is critical to consume adequate amounts of zinc from food. Zinc supplements are not recommended for longer than a few weeks because too much zinc may lead to a deficiency in other minerals, such as copper.
Quercetin is a natural antihistamine and anti-inflammatory plant pigment that boosts your immune system and may work to control viral replication, according to some research. It allows zinc to exert its proven antiviral properties; in treating COVID-19, quercetin may also lower inflammation, help clear mucus, prevent ventilator-induced damage and support immunity.
Foods high in quercetin include onions, kale, tomatoes, broccoli, asparagus, berries, red wine, citrus fruits, cherries, and tea.
Quercetin was initially found to provide broad-spectrum protection against SARS coronavirus in the aftermath of the SARS epidemic that broke out across 26 countries in 2003. Quercetin has also been found to have antiviral activity in Influenza A, Ebola and Zika viruses. Now, some doctors are advocating its use against SARS-CoV-2, in combination with vitamin C, noting that the two have synergistic effects.
- Recently, Ivermectin has come to the fore as a more effective (also long standing, cheap, generic drug), in all three stages of COVID-19.
- How much zinc you should take per day depends on the type and forms of zinc, as each supplement contains a different amount of 'elemental zinc'. The percentage of elemental zinc varies by form.
- For example, approximately 23% of zinc sulfate consists of elemental zinc; thus, 220 mg of zinc sulfate contains 50 mg of elemental zinc (Ref). Zinc picolinate (20% of elemental zinc), zinc ascorbate (15%), zinc chloride (48%), zinc carbonate (52%), zinc citrate (31%), zinc bisglycinate (25%) (Ref) and zinc gluconate (14%) and zinc oxide (80%) (Ref).
- Should quercetin be taken with zinc? Yes. Quercetin works best when taken with vitamin C and Bromelain, as vitamin C helps activate it and bromelain helps with the absorption. Vitamin C does not affect the absorption of normal dietary levels of zinc (Ref). Further, quercetin helps the transport of zinc across the cell membrane as a zinc ionophore.