American GinsengAmerican ginseng is a light tan, gnarled root that often looks like a human body with stringy shoots for arms and legs. Native Americans used the root as a stimulant and to treat headaches, fever, indigestion, and infertility. Ginseng remains one of the most popular herbs in the United States.
Several human studies show that American ginseng lowered blood sugar levels in people with type 2 diabetes.
American ginseng has been shown to inhibit tumor growth. In one laboratory study on colorectal cancer cells, researchers found that American ginseng possessed powerful anti-cancer properties.
One preliminary study suggests that American ginseng, in combination with ginkgo (Ginkgo biloba), may help treat ADHD.
Several clinical studies have shown that American ginseng does boost the performance of cells that play a role in immunity.
Preliminary studies suggest that American ginseng may improve cognition.
