FWIW, my personal immune regimen:
Vit D3, 10,000 iu / once daily
Quercetin, 1000 mg / twice daily
Zinc, 50 mg / once daily
Pomegranate Extract, 450 mg / once daily
Vit C, 1000 mg / once daily
Apparently it works: haven’t been sick in years. Have never had a flu shot and most likely will not have China virus shot.
You need to get the liposome vit c. Nearly equal to IV.
The key is take PLENTY. A couple 1000 mg is better than nothing. 10,000 mg a day is routine. Up that by a lot if sick. add D3, zinc and quercetin.
Do your own research.
MeWe- Megavitamin Man, Dr. Andrew Saul- scroll way down, plenty of info.