Dr. Sickels' Dispensary

Norona - foundational support for healthy people at risk of first infection

This is for adults without knowing their nutritional status. If you're shoring up people's baseline levels so when they are exposed it won't be bad it has to be simple, cheap and easy since this will need to be an ongoing supplement to keep these nutrient levels up. This simple protocol fits the bill - you don't need these specific products, these are just examples of what you can find here.