I am extremely curious as to what the mechanism of action is. The article did not say.
I think you have to have high resistance to take Metformin in the first place. I tried it — it did not agree with me.
Metformin lowers glucose.
COVID-19 May Trigger Hyperglycemia and Worsen Disease by Harming Fat Cells
https://news.weill.cornell.edu/news/2021/10/covid-19-may-trigger-hyperglycemia-and-worsen-disease-by-harming-fat-cells
Association of COVID-19 with diabetes: a systematic review and meta-analysis
https://www.nature.com/articles/s41598-022-24185-7