Vitamin A and D protect against the common cold.
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Vitamin A & D Protect Against Colds & Influenza, But Not COVID-19
One of the things that happens to promote lung damage by the virus [SARS-CoV-2]: lung cells start making less ACE2 to protect themselves. Because ACE2 is normally a health-promoting molecule, that contributes to the lung damage ... The virus causes you to lose ACE2, and that leads to lung damage.
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The Higher Your ACE2 Receptor Density, the Worse Your COVID-19 Infection Outcome
On most surfaces, coronaviruses survive for 5-9 days; on a copper surface, they survive for 5-30 minutes.
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Copper is Toxic to SARS-CoV-2
Someone with a zinc deficiency is probably more vulnerable to COVID-19 infection.
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Vegetarians & Vegans Have a Greater Risk of Zinc Deficiency
Animal studies suggest vitamin A & D increase ACE2, the receptor that SARS-CoV-2 binds to.
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Excess Vitamin A & D May Increase COVID-19 Infection Risk
The more ACE2 mice have, the faster they die after SARS-CoV-1 infection.
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The Higher Your ACE2 Receptor Density, the Worse Your COVID-19 Infection Outcome
Zinc can cause a copper deficiency. You really want at least 1 mg of copper for every 15 milligrams of zinc that you get.
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Supplement with 1mg of Copper for Every 15mg of Zinc
Amid COVID-19, limit vitamin A intake to 3000 IU per day.
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Amid COVID-19, Limit Liver Consumption to Avoid Excess Vitamin A
700-1,000 mg of elderberry extract (the amount derived from ~25 grams of fresh berries) has been shown to have antiviral effects against the cold and flu.
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Elderberry is Antiviral Against Many Coronaviruses
