Uses: Helps relieve and prevent mental and physical fatigue; shown to reduce the frequency and severity of colds; possibly beneficial for erectile dysfunction

Preparation and doses:
Tea: Simmer 1 tsp dried and sliced root in 1 cup water for 10 minutes. Strain. Drink 1–2 cups per day.
Standardized extract (4–7% ginsenosides): 100–400 mg per day

Concerns: Purchase from a reputable manufacturer, as ginseng has often been adulterated in the past.