Acetic Acid
- Chinese
- 醋
- Pinyin
- Cu
- Latin
- Acetum
Known in TCM as Cu (醋), this sour and bitter, warm herb enters the Liver and Stomach. Traditionally, it activates blood and dispels blood stasis; treats fixed pain, masses, and gynecological blood stasis patterns, most often applied for blood stasis, hypochondriac pain, and nausea pregnancy. Modern research has identified Acetic among its active constituents.
Part used: Vinegar preparation
TCM Properties
- Taste
- sour, bitter
- Temperature
- warm
- Channels
- Liver, Stomach
Traditional Use
Primary Actions
- Activates blood and dispels blood stasis; treats fixed pain, masses, and gynecological blood stasis patterns
- Regulates Liver Qi and alleviates pain; courses the Liver, addresses hypochondriac pain and emotional constraint
- Stops bleeding; treats hemorrhagic conditions including nosebleed and blood in stool
- Resolves toxicity and kills parasites; used internally and topically for toxic swellings and intestinal parasites
Secondary Actions
- Relieves nausea and vomiting during pregnancy when taken in small amounts
- Enhances qi-regulating and pain-reducing properties of co-processed herbs including Xiang Fu, Qing Pi, and Xiao Hui Xiang
Classical References
- Nei Jing (Yellow Emperor's Classic of Internal Medicine) … bitter and sour together drain; vinegar warms and drains
- Correlation between Materia Medica Companion (Ming Dynasty) … processing with vinegar guides herbs to the Liver meridian and relieves pain
- Ben Cao Gang Mu (Compendium of Materia Medica, Li Shizhen, 1578) … documented uses for blood stasis, toxicity resolution, and digestive complaints
Modern Research
Active Compounds
- Acetic acid
- Organic acids (lactic, citric, malic)
- Amino acids
- Polyphenols (in rice vinegar varieties)
- Melanoidins
Studied Effects
- Antimicrobial … acetic acid content inhibits bacterial and fungal growth
- Antioxidant … polyphenol content in rice vinegar contributes to free-radical scavenging
- Hepatoprotective … improves liver function markers in some models
- Enhances bioavailability of alkaloid-containing herbs when used as a processing medium
Safety & Interactions
Cautions
- Overuse may damage Spleen and Stomach; avoid in chronic digestive weakness or diarrhea
- Excess consumption may erode tooth enamel
Conditions
- Blood Stasis Traditional ★★★☆☆ JSON
- Hypochondriac Pain Traditional ★★★☆☆ JSON
- Nausea Pregnancy Traditional ★★☆☆☆ JSON
- Intestinal Parasites Traditional ★★☆☆☆ JSON
Frequently Asked Questions
What is Acetic Acid used for?
Acetic Acid is traditionally used to Activates blood and dispels blood stasis; treats fixed pain, masses, and gynecological blood stasis patterns, Regulates Liver Qi and alleviates pain; courses the Liver, addresses hypochondriac pain and emotional constraint, Stops bleeding; treats hemorrhagic conditions including nosebleed and blood in stool, Resolves toxicity and kills parasites; used internally and topically for toxic swellings and intestinal parasites. Research has investigated its effects on: Antimicrobial … acetic acid content inhibits bacterial and fungal growth; Antioxidant … polyphenol content in rice vinegar contributes to free-radical scavenging.
Is Acetic Acid safe during pregnancy?
Acetic Acid is generally considered safe during pregnancy in normal amounts. Therapeutic or concentrated doses should be discussed with a qualified practitioner before use.