I agree that the FLCCC is doing great work on this and coincidentally I just watched a video on this very topic last night. If you can stomach the first 10 or so minutes (I'll leave it up to you to decide on the intro yourself) this hour and a half webinar has some great advice for anyone concerned about the so called "vaccines" as well as for the none-"vaccinated" in terms of preventing and or minimizing their susceptibility to illness in general.

https://odysee.com/@FrontlineCovid19CriticalCareAlliance:c/weekly_webinar_July12:d

I personally have been intermittent fasting for 3 years and it's been very positive for me with respect to a number of health parameters going well beyond weight loss/maintenance. I'm sure it was helpful when I caught covid last winter and it only resulted in a 24 hour mild flu. For best results you need to also improve you quality of your diet and I also believe in supplementing with low does of a few miconutrients like Resveritrol and the usual suspects everyone is familiar with by now.