Lysine:
Increases IL-10 secretion. IL-10 is an anti-inflammatory cytokine. Cytokine storm is caused by inflammatory cytokines. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5023574/
Selenium:
Can promote anti-inflammatory cytokines: https://www.nature.com/articles/s41598-017-05230-2
Has antiviral activity on SARS: http://www.fortbildung.usz.ch/pdf/fb-programme_alte-versionen/ws04-05/taylor-seminar_20-12-2004.pdf
Monolaurin:
Down-regulates inflammatory cytokines: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4924139/
Is effective against enveloped viruses, including coronaviruses, by dissolving their envelopes: https://patch.com/new-york/threevillage/bp--monolaurin-for-the-common-cold
Oregano oil:
Promotes anti-inflammatory cytokines, decreases production of inflammatory cytokines: https://selfhacked.com/blog/oregano/
Is effective against enveloped viruses: https://books.google.com/books?id=Bg3pDAAAQBAJ&pg=PA456&lpg=PA456&dq="oregano+oil"+sars&source=bl&ots=oWyfnW6lfU&sig=ACfU3U2TQQl5sTkuCR27JI1HGTlHoTL4Dg&hl=en&sa=X&ved=2ahUKEwi60sbzz6TnAhVNalAKHcCKDrw4FBDoATACegQICRAB#v=onepage&q="oregano oil" sars&f=false
Monolaurin:
Has anti-inflammatory properties: https://www.allaboutfeed.net/Feed-Additives/Articles/2018/6/Beat-the-inflammation-for-full-potential-293358E/
Has action against enveloped viruses: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC174645/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2957173/
Turkey rhubarb:
Has effects against inflammatory cytokines: https://www.ncbi.nlm.nih.gov/pubmed/12584786
Has anti-SARS effects: https://patents.google.com/patent/CN100591651C/en
Calendula officinalis :
Inhibits inflammatory cytokines: https://www.ncbi.nlm.nih.gov/pubmed/19374166
Has anti-SARS activity: https://webcache.googleusercontent.com/search?q=cache:kZWFf6j62r8J:https://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/2017_Art48.pdf+&cd=10&hl=en&ct=clnk&gl=us
Astragalus:
May decrease inflammatory cytokines and increase anti-inflammatory cytokines: https://www.ncbi.nlm.nih.gov/pubmed/18655554
Inihibts coronaviruses: https://www.ncbi.nlm.nih.gov/pubmed/29170045
Turmeric:
Inhibits inflammatory cytokines: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4310836/
Inhibits enveloped viruses: https://www.ncbi.nlm.nih.gov/pubmed/23658730/
Black tea:
Inhibits SARS: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1142193/
Has anti-inflammatory properties: https://www.ncbi.nlm.nih.gov/pubmed/11243706
https://www.ncbi.nlm.nih.gov/pubmed/26692322