e200921c_sity_of_Michigan_Health_System__Why
[Supplement] 1 Star Asian Ginseng Refer to label instructions [Why] 
Adaptogens such as Asian ginseng are thought to help keep various body systems—including the immune system—functioning optimally. Herbal supplements can help strengthen the immune system and fight infections. Adaptogens, which include eleuthero, Asian ginseng, astragalus, and schisandra, are thought to help keep various body systems—including the immune system—functioning optimally. They have not been systematically evaluated as cold remedies. However, one double-blind trial found that people who were given 100 mg of Asian ginseng extract in combination with a flu vaccine experienced a lower frequency of colds and flu compared with people who received only the flu vaccine.46
Common Cold/Sore Throat (Holistic) | University of Michigan Health System
Why