I been getting into colloidal metals like silver and copper to stay well. People use silver to kill pathogens, funguses, and viruses (even though i think virology is fake, they mention viruses in stuff that it kills). I also have been having my dad use silver on skin cancer and its fading away. Personally I think cancer is a fungus, so it makes sense to me that it would go away with silver. Anyways, I been using the brand therasilver and am on my first bottle. I can't say of long term effects but I been using it as a mouth wash and drinking 2-3tsp a day. How they word it is that it's not an immune booster, it works as a second immunity that works apart from your immune system. You get silver in food already such as grains, medicinal mushrooms, milk etc.

Copper is another one but it's mostly used for beautifying I guess. So been using it for my skin lol. If they used copper in hospitals on all the handles, surfaces we touch etc, sicknesses would be transfered less to a large degree because of how antimicrobial it is. However copper is a heavy metal unlike silver which is a transitonal metal. So if you take it internally you just do a drop, where as silver you'd do a tsp to 2 a day.

Apart from ALL of that the best way to not get sick? Stop the consumption of sugar, eat healthy foods high in fat lower in carbs, low to moderate protein, wash your hands, get a full nights rest, get sunlight, keep your space clean and think positive.

To add: There is a stigma on colloidal silver cause of the blue man, but he used silver chloride not silver colloids. A true silver colloid is very small particles of silver(less than 1nm) and silver ions together. Also theres a lot of fake products of silver out there if anyone is to look. Stay away from silver proteins and silver ions. You want both silver particles in a suspension of silver ions. Otherwise you may not get the results you want or have them greatly reduced. I think therasilver is the best brand for this tbh.