Yellow Dock (Chin Ch’iao Mai)
Botanical Name: Rumex crispus
Yellow dock leaf stalks can be enjoyed in salads, and the roots and fruit are used as medicine to help treat swollen sore throats, respiratory infections, sinusitis, allergies, and wheezing. It is also used to treat sexually transmitted diseases. Yellow dock is especially used to treat skin diseases such as dermatitis, rashes, and psoriasis that are associated with poor digestion or poor liver function due to toxicity. It is an excellent blood purifier that is also used to treat anemia. Don’t confuse yellow dock with bitter dock (Rumex obtusifolius), which is a different plant with broad, heart-shaped leaves that have red stems.
Below is an overview of Yellow Dock (Chin Ch’iao Mai), combining and interpreting the best of Western Science, Traditional Chinese Medicine (TCM), Shamanism, Folklore and more. Gain a balanced and thorough understanding of the healing properties of Yellow Dock (Chin Ch’iao Mai).
Western Name: Yellow Dock
Also Known As: Sheep Sorrel, Garden Patience, Curled Dock, Curly Dock, Dock, Rumex, Sour Dock
Organs/Systems: Liver, Digestive System, Blood, Skin, Respiratory System
Key Actions: Anti-inflammatory, Antibacterial, Laxative, Analgesic, Tonic, Antifungal, Alterative, Antioxidant, Diuretic.
Medicinal Uses: Swollen sore throats, allergies, sinusitis, respiratory infections, syphilis, psoriasis, eczema, scurvy, jaundice, mild constipation, fungal infections, intestinal infections, poor digestion, acne, dermatitis, scrofula, rheumatism, stomach ulcers, diarrhea, shingles, boils, pruritis, diabetes; increases urination.
Pin Yin: Chin Ch’iao Mai
Also Known As: Chin Chao Mai
Meridians: Liver, Stomach, Spleen, Intestines
Key Actions: Clears Liver Heat, Tonifies the Liver, Moves Stagnant Qi, Tonifies the Stomach, Clears Damp Heat, Builds Blood.
Medicinal Uses: Constipation, menstrual cramps, anemia, poor digestion, diarrhea, skin eruptions, boils, fibroids, headaches, sinusitis, lethargy, anxiety, joint pain, cancer.
Parts Most Frequently Used: Roots, Fruits, Leaf Stalks
Flavors/Temps: Very Bitter, Sour, Astringent, Cool
Caution: Generally considered safe. When eaten raw or in excessive amounts, can cause nausea or diarrhea; when overused externally, can cause skin irritation. People allergic to ragweed may also be allergic to yellow dock.
History/Folklore: Yellow dock helps treat the pain and swelling associated with cold, flu, and sinusitis. It is a digestive bitter, excellent for supporting healthy digestion, liver function, and blood purification. The herb supports stage-2 detoxification of the liver and a diverse microbiome and stimulates digestive enzymes and bile that further help support digestive activities. A wide range of skin ailments, from acne to dermatitis to other rashes, are all aided by yellow dock’s detoxification properties.
Yellow dock has deep cleansing properties and is used to treat a wide variety of chronic problems associated with liver or digestive dysfunction. Arthritis, chronic morning diarrhea, and chronic skin conditions can benefit from yellow dock’s cleansing and gentle, yet powerful, ability to move stagnation and clear toxicity.
Yellow dock can be blended with burdock to help cleanse the blood, with licorice root to help cleanse and tone the bowels, and with red clover and cleavers to cleanse the lymphatic system, helping to treat swollen glands and sore joints.
The bitter tannins in yellow dock help to naturally balance hormones by aiding in the elimination of excess estrogen released during a woman’s menstrual cycle. The astringent properties of these same tannins help tone tissues and treat diarrhea.
Yellow dock is considered one of the safest laxative herbs available. It is less cathartic than Senna or Cascara and stronger than either dandelion or burdock. Yellow dock is a good herb to treat mild constipation or bowel sluggishness, especially if it is being used over a longer period of time. In general, extended use of harsher or stronger herbs can begin to overcome the digestive system and create unwanted dependency for ensuring proper bowel movements.
The anthraquinone compound found in yellow dock contributes to the herb’s properties as a mild laxative.
Yellow dock contains inulin, which is a prebiotic that helps support a healthy digestive microbiome. It nourishes beneficial bacteria that helps keep the digestive system functioning properly.
Midwives have combined yellow dock in syrups with dandelion and blackstrap molasses to prevent iron deficiency in pregnant women. Yellow dock teas, syrups, and tinctures have been used by women, and men too, to help treat iron poor blood and anemia. The herb blends well with other herbs that can also help tonify and build blood.
While small amounts of raw, early-spring leaves can be safe to eat when picked before the flowers bloom, eating large amounts of these raw leaves can be toxic. The leaves are more safely enjoyed by adding them to soups and stews. If using the leaves as greens, then boiling them twice is recommended. Simply boil the leaves, throw out the water, and then quickly boil again. This technique helps to remove the toxic oxalate compounds in the leaves that can cause stomach upset and prevent the absorption of calcium and magnesium.
Typical dosages include 2-4 tbsp of the fresh root, or 2-4 g of the dry root used in tea three times a day for not longer than 8-10 days.
Native American tribes used yellow dock extensively. The Dakota used the bruised fresh leaves as a poultice to help heal infected wounds, and the Blackfoot and Cheyenne tribes used the root pulp topically to treat rheumatic pains. The Iroquois used the root pulp as a poultice to treat yellow fever. They all used the root internally as a tonic and blood purifier. In preparation for healing and sacred ceremonies, the Navajo used the whole plant as an emetic in order to cleanse the system.
In Oriental medicine, a tea made from yellow dock root is famous for treating constipation.
The homeopathic remedy made from the plant in its pre-flowering stage is useful for treating irritable tickling coughs of the throat and upper bronchial passageways.
The plant’s Latin name Rumex means lanced. This refers to the plant’s leaves, which are long and narrow. The Greek name for yellow dock is lapathum, which translates as blood purifier.
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Anthraquinones, Anthraquinone glycosides, Oxalates, Tannins, Minerals, Inulin, Iron, Chrysarobin, Manganese, Potassium, Rumicin, Phosphorus, Vitamins A and C, Selenium, Silicon, Sodium, Nepodin, Beta-carotene.
Used for itching and swollen glands, the root of yellow dock can be boiled in vinegar, with the pulp then mixed with lard or another agent as the base for the ointment.
The roots of yellow dock have growth rings that can be seen when the roots are sliced.
Yellow dock is rich in minerals. It soaks up trace minerals from the soil and transforms them into an organic form the body can digest. Traditional herbalists sprinkled iron filings on the soil around the plants to further increase their ability to treat anemia and blood deficiency.
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