← The Herb LibraryWinter’s living materia medica

American ginseng

Panax quinquefolius

American ginseng
Wikimedia Commons · Jacob Bigelow (1786-1879), text and coloured engravings · Image source · Public domain

Overview

Oral: supports blood sugar metabolism and postprandial glycemia (healthy people and type 2 diabetes). Adaptogen/general tonic uses listed in text include stress resistance, stamina/endurance support, immune support, digestive aid (as per page’s expanded medicinal uses list).

Plant family

Araliaceae

Parts used

Root

Actions

Adaptogen · Tonic

Affinities

Cardiovascular · Digestive · Nervous · Immune

Body systems

Cardiovascular · Digestive · Nervous · Immune

Tissue states

Traditional use

Expanded traditional list on page includes: anemia, gastritis, insomnia, neurasthenia, fever/hangover, appetite loss, vomiting, colitis/dysentery, rheumatism/neuralgia, memory loss/dizziness/headaches, convulsions, and other broad ‘tonic’ indications.

Current use

Oral: supports blood sugar metabolism and postprandial glycemia (healthy people and type 2 diabetes). Adaptogen/general tonic uses listed in text include stress resistance, stamina/endurance support, immune support, digestive aid (as per page’s expanded medicinal uses list).

Preparation

Decoction; infusion; dry extract.

Dosage guidance

Decoction: 3–6 g dried root simmered in 720–960 mL water ~45 min. Infusion: 1–2 g dried root in 150–240 mL boiling water, steep 20 min. Dry extract (for physical endurance): 330 mg 3x daily.

Cautions & contraindications

Wild American ginseng is endangered in the US (conservation concern). Reported to decrease blood coagulation; contraindicated with hemorrhage or thrombosis. Use caution with cardiac disorders (hypotensive/negative inotropic/chronotropic effects). Hypoglycemic activity; use caution with diabetes and with antidiabetic meds (monitor). Possible estrogenic effects; avoid with hormone-sensitive conditions (breast/uterine/ovarian cancer, endometriosis, uterine fibroids). High doses associated with insomnia; caution with insomnia and schizophrenia. Avoid confusion with Siberian ginseng (Eleutherococcus senticosus) and Asian ginseng (Panax ginseng).

Evidence notes

Clinical review on page emphasizes reduced postprandial glycemia in both healthy participants and those with type 2 diabetes. Strong conservation note: wild American ginseng is endangered in the U.S. Safety cautions include bleeding/thrombosis risk, hypoglycemia risk with antidiabetic meds, and hormone-sensitive condition caution.