Being listed here is not a positive verdict. These pages examine immunity & colds; some find mixed, weak, or no useful evidence, and some end with a skip.
Vitamins
Minerals
Compounds
- Glutamine
- Glutathione
- L-lysine
- Liposomal glutathione vs reduced Coming soon
- NAC
- Quercetin Coming soon
- Urolithin A Coming soon
Herbs & Botanicals
- Echinacea
- Goldenseal Coming soon
- Ivy leaf Coming soon
- Mullein Coming soon
- Oregano Coming soon
Plants, Fruit & Berries
Mushrooms & Fungi
- Agaricus Coming soon
- Chaga
- Functional mushroom blends Coming soon
- Maitake
- Reishi Coming soon
- Shiitake
- Turkey tail
Gut
- Heat-killed Lactobacillus Coming soon
- Postbiotics Coming soon