Evidence supporting the use of: Licorice root
For the health condition: Nausea and Vomiting

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Licorice root (Glycyrrhiza glabra) has a long-standing history in traditional medicine systems, such as Traditional Chinese Medicine (TCM) and Ayurveda, where it has been employed to address a variety of digestive complaints, including nausea and vomiting. In these traditions, licorice root is believed to soothe the stomach lining and reduce inflammation, which may help relieve gastrointestinal discomfort. Its demulcent properties—meaning it can form a soothing film over mucous membranes—are thought to protect the stomach and esophagus from irritation caused by gastric acids or toxins.

However, direct scientific evidence supporting licorice root's efficacy specifically for nausea and vomiting is limited. Most clinical research on licorice focuses on its effects on gastric ulcers, inflammation, and respiratory issues. Some studies suggest that deglycyrrhizinated licorice (DGL) may aid in healing gastric mucosa, potentially reducing symptoms that can include nausea. However, these studies rarely isolate nausea and vomiting as primary endpoints, and robust randomized controlled trials for this use are lacking.

In summary, while licorice root continues to be used in traditional medicine for gastrointestinal complaints, including nausea and vomiting, the scientific validation for these particular uses is weak. Its use remains primarily tradition-based, and more high-quality clinical research is needed to confirm its efficacy for these symptoms.

More about licorice root
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Other health conditions supported by licorice root

Abdominal Pain
Abrasions
Abscesses
Acid Indigestion
Acne
Addictions (general remedies for)
Addictions (tobacco smoking or chewing)
Addison's Disease
Adenitis
Adrenal Fatigue
Afterbirth Pain
Age Spots
Allergies (respiratory)
Amenorrhea
Anal Fistula or Fissure
Anemia
Appetite (deficient)
Asthma
Autoimmune Disorders
Bronchitis
Canker Sores
Chemotherapy (reducing side effects)
Chicken Pox
Cholera
Chronic Obstructive Pulmonary Disorder
Cirrhosis of the Liver
Cold Sores
Colds (antiviral)
Colds (decongestant)
Colds (general)
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Colds (with fever)
Colic (adults)
Colic (children)
Colitis
Colon (atonic)
Colon (spastic)
Congestion
Congestion (bronchial)
Congestion (lungs)
Congestion (lymphatic)
Congestion (sinus)
Constipation (adults)
Contagious Diseases
Convalescence
Cough (damp)
Cough (dry)
Cough (general)
Cough (spastic)
Cramps (menstrual)
Crohn's Disease
Croup
Cushing's Disease
Cytomealovirus
Dyspepsia
Eczema
Emphysema
Endometriosis
Enteritis
Epstein Barr Virus
Estrogen (low)
Fatty Liver Disease
Fever
Fibrosis
Gall Bladder (sluggish or removed)
Gall Stones
Gas and Bloating
Gastritis
Gingivitis
Glands (swollen lymph)
Goiter
Gonorrhea
Gout
Grave's Disease
Hair (loss or thinning)
Hair Care (general)
Halitosis
Hangover
Headache (general)
Headache (sinus)
Headache (tension)
Heart (weakness)
Hemorrhoids
Hepatitis
Hernias
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Hiatal Hernia
Hiccups
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Infection
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Inflammation
Inflammatory Bowel Disorders
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Itching
Itching Ears
Jaundice (adults)
Jock Itch
Kidney Infection
Laryngitis
Leaky Gut Syndrome
Leprosy
Lesions
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Liver Detoxification
Lungs (fluid in)
Lyme Disease
Lymph Nodes or Glands (swollen)
Malaria
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Menopause
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Menstruation (scant)
Mental Illness
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Mononucleosis
Mood Swings
Morning Sickness
Mumps
Nausea and Vomiting
Nephritis
Nervous Exhaustion
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Night Sweating
Nocturnal Emission
Oral Surgery
Ovarian Pain
Overacidity
Pertussis
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PMS (general)
Pneumonia
Poison Ivy or Oak
Rashes and Hives
Rosacea
Sore Throat
Ulcers