About This Herb*
Traditional Chinese Medicine background and properties
Herb Description*
Ji Nei Jin is the dried inner lining of the chicken gizzard, one of the most popular digestive aids in Chinese medicine. It is widely used for indigestion, bloating, poor appetite, and childhood nutritional deficiencies. It is also valued for its ability to help dissolve urinary and gallbladder stones and to address bedwetting in children.
Herb Category*
Main Actions*
- Promotes Digestion and Resolves Food Stagnation
- Strengthens the Spleen
- Secures Essence and Stops Enuresis
- Softens hardness and dissolves stones
- Resolves Food Stagnation and Transforms Accumulations
How These Actions Work*
'Promotes digestion and resolves food stagnation' is the primary action of Ji Nei Jin. It strongly breaks down accumulated undigested food in the Stomach and intestines, relieving symptoms like bloating, fullness, poor appetite, and nausea after eating. It is effective for stagnation of all food types, including grains, starches, dairy, and meat. For mild cases, the powder alone can be sufficient; for more stubborn food stagnation, it is combined with other digestive herbs like Shan Zha (hawthorn) and Mai Ya (barley sprout).
'Invigorates the Spleen's transport function' means Ji Nei Jin does more than just break down food. It actively strengthens the Spleen's ability to transform food into usable nourishment for the body. This makes it especially valuable for childhood malnutrition (gan ji), where the Spleen is weak and food accumulates rather than being properly absorbed. The famous physician Zhang Xichun noted that pairing Ji Nei Jin with Bai Zhu (white atractylodes) creates a powerful combination that both dissolves stagnation and strengthens digestion simultaneously.
'Secures essence and stops enuresis' refers to the herb's ability to restrain and consolidate the body's vital substances in the lower body. It is used for bedwetting in children, frequent urination, and involuntary seminal emission. This action relates to its entry into the Urinary Bladder channel. The stir-fried (chao) form is preferred for this purpose.
'Softens hardness and dissolves stones' is an action inspired by the gizzard's natural ability to grind down pebbles and hard materials in the chicken's digestive tract. In TCM, the raw form of Ji Nei Jin is used to help dissolve and expel gallstones, kidney stones, and bladder stones. It is commonly paired with Jin Qian Cao (Lysimachia) for this purpose.
'Transforms accumulations' extends beyond food stagnation to include masses and stagnation anywhere in the body. Zhang Xichun emphasized that Ji Nei Jin can address abdominal masses in both men and women, and even stagnation in the meridians in chronic wasting conditions. For this action, the raw form must be used.
Patterns Addressed*
In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Ji Nei Jin is traditionally associated with these specific patterns.
The following describes this herb's classification within Traditional Chinese Medicine theory and is provided for educational purposes only.
Why Ji Nei Jin addresses this pattern
Ji Nei Jin is one of the strongest herbs for resolving food stagnation. Its sweet, neutral nature enters the Spleen and Stomach channels directly, where it powerfully breaks down accumulated food that the weakened Spleen and Stomach have failed to transform. Unlike purely draining digestive herbs, Ji Nei Jin simultaneously supports the Spleen's transport function, making it suitable even when food stagnation coexists with underlying Spleen weakness. Zhang Xichun noted that it can dissolve stagnation throughout the body, not just in the digestive tract.
A practitioner would look for one or more of these signs
Abdominal distension and fullness after meals
Reduced desire to eat
Nausea or vomiting of undigested food
Sour, foul-smelling belching
Why Ji Nei Jin addresses this pattern
While primarily a digestive herb, Ji Nei Jin has a unique ability to invigorate the Spleen's transport function from within. Its sweet flavor nourishes the Spleen, and its natural affinity for the Spleen and Stomach channels means it strengthens these organs' ability to process food and generate Qi and Blood. Zhang Xichun used it extensively in tonic formulas like Yi Pi Bing (Spleen-Benefiting Cake), pairing it with Bai Zhu to simultaneously dissolve stagnation and fortify the Spleen. This makes it especially useful in childhood malnutrition (gan ji), where the weak Spleen cannot absorb nutrients.
A practitioner would look for one or more of these signs
Chronic loose stools with undigested food
Persistent lack of appetite
Tiredness and weakness from poor nourishment
Why Ji Nei Jin addresses this pattern
Ji Nei Jin enters the Urinary Bladder channel and has an astringent, securing quality that helps consolidate Kidney Qi in the lower body. When the Kidneys fail to secure essence and fluids, symptoms like bedwetting, frequent urination, and involuntary seminal loss appear. The stir-fried form is preferred here because processing enhances the astringent, restraining property. It is commonly combined with other Kidney-securing herbs like Sang Piao Xiao (mantis egg case) and Tu Si Zi (dodder seed).
A practitioner would look for one or more of these signs
Bedwetting in children
Frequent, hard-to-control urination
Involuntary seminal emission
TCM Properties*
Neutral
Sweet (甘 gān)
Animal — part (动物部分 dòng wù bù fèn)
This is partial information on the herb's TCM properties. More detailed information is available on the herb's dedicated page
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.