Skip to main content
894B919F-B5BB-4E09-8222-9F107DB069C0 CB145FFD-DA32-49CC-89BA-54E4EBDF33C8 cart E3C5D0D6-C18C-4A2F-B901-9E340DEA381F f f_active 0759D870-545C-4200-975D-753A4FF69107 620E368B-523A-46EF-B89A-17EBCEC48F66 like like_active D9F9A0E9-30A0-425A-9E1C-7FEBC6FF0FCF 2D8B5385-67B9-4856-8E31-652352309DB4 314FCE74-93F9-4914-B8F1-9B59C90E3842 40C944CF-E6F7-46D2-AF30-2951D858C2E4 B7749E91-7D6F-425D-90DF-0CB5E323615C B04765DB-499F-4115-86A2-A84897327374 Play E2E8ABCA-77E9-4D57-A47B-909532B8E360 EEF60097-7EDF-4732-99E2-B21809759E49 72DB4B51-6B19-429A-805A-33D3376786D3 CED61CCB-E970-4ADF-B074-4DBE4E97E9E1 t t_active AA25031C-4A16-47C3-9E37-E03BFF4BEAA2
Skip to main content
Research Notes

American Ginseng (Panax Quinquefolius) and Cancer-Related Fatigue

St. Francis Herb Farm Logo

Notes from Dr. Terry

Ginseng, especially Chinese (also known as Korean or Red) ginseng has long been considered a general tonic for improving energy, stamina and to mitigate some of the effects of aging, among other uses. Less known is that American ginseng, also known as Canadian (or in this case, Wisconsin) ginseng (Panax quinquefolius), is even more revered in China than its native Panax ginseng, and has been exported from North America to China since the early colonization years of North America by Europeans. P quinquefolius is the object of this study, which examined its effectiveness for cancer-related fatigue. 

This study enrolled 364 cancer survivors at 40 clinic locations, and administered either 2000 mg of American ginseng per day (N=171) or placebo (N=181) for eight weeks. The endpoint being measured was the score on a questionnaire known as the Multidimensional Fatigue Symptom Inventory– Short Form (MFSI-SF) at four and eight weeks. 

The authors reported that there was a statistically significant improvement in fatigue scores at eight weeks, versus placebo, with a change in score of 20 for the ginseng arm, and only 10.3 for the placebo arm (P = .003). Benefit was greatest in those individuals actively receiving cancer treatment in the form of radiation or chemotherapy. 

Note that 2,000 mg of American ginseng is equivalent to 4 ml of St. Francis Herb Farm’s tincture product. The recommended dosage schedule is 4 ml (60 drops), twice per day. 

Read the research summary:

Dr. Terry Vandeheyden is a naturopathic doctor, registered herbalist and St. Francis Herb Farm medical advisor. 

To see how to lower your blood pressure check out our monograph on olive leaf extracts and human vascular function.

Get special offers, exclusive promotions, and health information sent directly to your inbox.