Native to the Pacific Northwest of North America, Mahonia aquifolium — Oregon Grape Root — has been used for centuries by Indigenous peoples of the Columbia Plateau and Pacific Coast, including the Blackfoot, Flathead, and Lummi nations, as a bitter digestive tonic, liver herb, and immune ally. Its intensely yellow root reveals berberine — a potent alkaloid also found in goldenseal — making it one of North America’s most valued medicinal roots.
Oregon Grape Root is prized by modern herbalists primarily for its high berberine content, which is traditionally used to support liver function, healthy digestion, and gut microbial balance. It is particularly valued as a digestive bitter, stimulating bile production and supporting the liver’s natural detoxification processes. Oregon Grape Root is also well-regarded in natural skincare for supporting clear, healthy skin, especially for those prone to eczema and psoriasis — and is a staple in holistic protocols targeting microbial imbalance in the gut.
For a gentler, more palatable bitters blend, pair Oregon Grape Root with Ginger Root, Cinnamon, and Licorice — the warming spice and naturally sweet licorice help soften the root’s intense bitterness while amplifying its digestive and liver-supportive benefits.
Oregon Grape Root is not recommended during pregnancy or for those with jaundice or severe liver disease. It may interact with cyclosporine, tetracycline, and other medications. Long-term use should be supervised. Those already supplementing with berberine should avoid doubling up. As always, consult a qualified healthcare practitioner before use, especially if you are pregnant, nursing, or taking medications.
* Rich in berberine — a studied compound that supports gut microbial balance and digestive health
* Traditionally used to stimulate bile flow and support healthy liver function
* Natural digestive bitter to improve appetite and digestive efficiency
* Valued in herbal skincare for supporting clear, healthy skin
* Used by Pacific Northwest Indigenous peoples for centuries as immune and digestive medicine
1. Add 1 teaspoon of dried Oregon Grape Root to a small pot with 10–12 oz of water.
2. Bring to a gentle simmer and decoct for 15–20 minutes — the root requires more heat than leafy herbs.
3. Strain and serve warm. Add a small piece of licorice root or a drizzle of raw honey to offset the intense bitterness.
4. Drink up to 2 cups daily as a digestive bitter before or after meals.
External use: Strong cooled decoctions can be applied topically to support skin clarity.
