Plenty of evidence for the following helping:
1. High potassium diet - nearly everyone hospitalised has Hypokalemia (potassium deficiency). Potatoes, Squashes, Broccoli, Kale Tomatoes, citrus fruit, Bananas, etc.
2. Multivitamins at least 200% Vitamin D
3. From first sign of infection 2 tabs per day of...
- Vitamin C + Zinc &
- Echinacea
4. After infection detected gargle with very warm boiled water with1/3 teaspoon of salt. It only delays the build up of virus in the lungs but each hour of delay gives the body more time to fight.
It ain't a cure but there is a lot of evidence to say it helps.