Pearl Grass and Pork Liver Soup: Clear Damp-Heat, Nourish Liver Blood

Introduction to Medicinal Diet

Pearl Grass and Pork Liver Soup is a traditional medicinal delicacy originating from the Lingnan folk tradition, combining the dual effects of clearing Heat and draining Dampness with nourishing Blood and supplementing the Liver. Its core ingredients are Pearl Grass (*Phyllanthus urinaria*, also known as chamber bitter or stonebreaker) and pork liver, complemented by goji berries (*Lycium barbarum*), fresh ginger (*Zingiber officinale*), and other adjuncts, slowly simmered over gentle heat. This soup not only offers a delicious taste and rich, mellow texture but also embodies the wisdom of “medicine in food” (寓医于食). It is highly cherished by people in Guangdong and Guangxi regions, especially suitable for consumption during the transition from spring to summer or during periods of heavy Dampness and Heat.

Pearl Grass (Phyllanthus urinaria L., also known as Leaf-under-Pearl or Dragon Pearl Herb) is named for its fruit, which grows beneath the leaves and resembles pearls. In classical Chinese materia medica texts, Pearl Grass is cool in nature, with a sweet and bitter taste, and has the distinctive actions of clearing heat and draining dampness, brightening the eyes, and reducing accumulations. Pig liver, as a “substance of flesh and blood,” has been regarded since antiquity as an essential medicament for supplementing the liver, nourishing blood, and brightening the eyes. When combined, the two complement each other—one clears and the other supplements—so that clearing does not impair the upright qi, and supplementing does not contribute to dampness. Thus, this pairing is precisely a health-preserving formula tailored for individuals with damp-heat constitution accompanied by liver blood deficiency.

Efficacy of Medicinal Diet

Pearl Grass and Pig Liver Soup combines the two core functions of “clearing Damp-Heat” and “nourishing Liver Blood.” In this soup, Pearl Grass (Phyllanthus urinaria) is adept at clearing Damp-Heat from the Liver and Gallbladder as well as the Lower Burner, effectively improving conditions such as red, swollen eyes, increased eye discharge, bitter taste in the mouth, dry throat, and dark yellow urine caused by internal Damp-Heat. Pig liver directly nourishes Liver Blood, alleviating issues like blurred vision, night blindness, sallow complexion, and brittle nails associated with Liver Blood deficiency. Working synergistically, the soup expels Damp-Heat while replenishing Liver Blood, making it an excellent dietary remedy for “protecting and brightening the eyes.”

From the perspective of modern nutrition, pork liver is rich in high-quality protein, vitamin A, iron, zinc, and other nutrients—particularly abundant in vitamin A, which is essential for maintaining normal vision and epithelial tissue health. *Pearl grass* (*Phyllanthus urinaria* / Chamber bitter) contains various bioactive components such as flavonoids and phenolic acids, which exhibit antioxidant, anti-inflammatory, and hepatoprotective effects. Therefore, this soup can provide beneficial nourishment and repair for individuals who frequently overuse their eyes, stay up late, are exposed to damp-heat environments, or have a greater liver burden.

Analysis of Decoction Characteristics

This soup has a clear, slightly yellowish broth. Upon tasting, it is fresh and sweet, with a clean, lingering note of *Phyllanthus urinaria* (Stonebreaker), while the pork liver is tender, smooth, and not dry. Unlike typical medicinal meals with a strong herbal taste, it relies on the natural flavors of its ingredients. It can be enjoyed as a home-style soup or as a supportive dietary addition during a health regulation period. Consumed 2 to 3 times weekly, it gently assists the body in restoring the balance of Qi and Blood. In particular, it provides a subtle, nourishing effect for the physiological function of “the Liver opens into the Eyes,” moisturizing with silent efficacy.

The Role of Traditional Chinese Medicine

Traditional Chinese Medicine holds that the Liver stores blood, opens into the eyes, and its brilliance is manifested in the nails. When damp-heat pathogens invade the Liver and Gallbladder, or when Liver blood deficiency leads to the eyes losing nourishment, a series of problems such as dry eyes, blurred vision, and irritability may arise. The formula of Pearl Grass (Phyllanthus urinaria, Chamber Bitter) and Pig Liver Soup is designed exactly for this pathogenesis. Pearl Grass enters the Liver (LR), Gallbladder (GB), and Bladder (BL) meridians; with its cool and moistening nature, it clears and drains damp-heat from the Liver and Gallbladder, allowing turbid pathogens to be expelled through urination. Pig Liver, employing the principle of “like treats like,” directly enters the Liver meridian, nourishes blood, and tonifies the Liver, thereby replenishing the eye orifices.

Detailed Explanation of the Medicinals in the Formula

In this formula, *Phyllanthus urinaria* (Chamber Bitter) serves as the “monarch” drug, administered in a moderate dose to clear heat without damaging the Stomach and to drain Dampness without injuring the Yin, making it especially suitable for those with a Heat constitution or Damp-Heat pattern. Pig liver acts as the “minister” drug, utilizing its moistening and warming properties of animal flesh to nourish the Liver Blood, ensuring that after purging and drainage, there is a source for replenishment. A small amount of *Lycium barbarum* (Goji Berry) is added as an assistant to enhance the effects of nourishing Yin, tonifying the Kidneys, and brightening the eyes. Fresh *Zingiber officinale* (Ginger) is employed as an envoy to both eliminate the fishy smell of the pig liver and to warm the Stomach, dispel Cold, and harmonize the medicinal properties, ensuring the entire formula is cooling without being cold, and tonifying without causing stagnation. The combined ingredients work synergistically to achieve the effect of “clearing the Liver and draining Dampness, nourishing the Blood and brightening the eyes.”

Indications

Pearl Grass (Phyllanthus urinaria) and Pork Liver Soup is particularly suitable for individuals with concurrent “Liver Blood Deficiency” and “Damp-Heat Accumulation”. For example, office workers who spend long hours in front of computer or phone screens and experience vision decline, dry and gritty eyes, and tearing upon wind exposure due to overuse; those who frequently stay up late and consume spicy, fatty foods, presenting with bitter taste, halitosis, yellow greasy tongue coating, and dark yellow urine, indicating a Damp-Heat constitution; as well as patients with mild jaundice, early-stage acute conjunctivitis (pink eye), or childhood nutritional impairment with blurred vision—all of these individuals can use this soup as an adjunct dietary therapy.

In addition, for women with Liver Blood Deficiency presenting with dull complexion, scanty pale menstruation, and brittle lusterless nails, as well as for elderly individuals with gradual Liver-Kidney Deficiency manifesting as blurred vision and night blindness, moderate consumption of this soup can provide nourishing and ameliorative effects. During the transition from spring to summer, when Damp-Heat is more pronounced, healthy individuals consuming this soup once a week can also help prevent Damp-Heat and support the Liver and eyes.

Contraindicated groups

Although Pearl Grass and Pork Liver Soup (珍珠草猪肝汤) is generally mild in nature, it is not suitable for everyone. Those with Spleen-Stomach Deficiency-Cold (脾胃虚寒) pattern should use it with caution. Such individuals often present with aversion to cold, epigastric cold pain, loose stools, or diarrhea. Since Pearl Grass (Phyllanthus urinaria) is cool in nature, it may aggravate the Spleen and Stomach burden, causing abdominal discomfort. If consumption is deemed necessary, it is advisable to increase the amount of Ginger (Zingiber officinale) and reduce the dosage of Pearl Grass, while also adding an appropriate amount of Red Dates (Ziziphus jujuba) to fortify the Spleen and warm the Middle Burner (健脾温中).

Patients with hypercholesterolemia, acute gout attack, or severe liver and kidney insufficiency should strictly limit their intake of pig liver. Pig liver is high in cholesterol, containing approximately 288 mg per 100 g, and excessive consumption may adversely affect blood lipid control. Additionally, individuals allergic to animal organs, as well as pregnant women (especially in the first trimester), should consume it with caution under medical guidance to avoid adverse reactions due to individual constitution differences. Those with wind-heat excess patterns presenting as common cold with fever, and sore throat with swelling and pain, are also advised to temporarily refrain from eating it, so as not to aggravate heat and generate phlegm.

Ingredient proportions in formula

The following is a standardized formula suitable for 2 to 3 persons, accurate to the gram, ensuring optimal efficacy and taste.

Phyllanthus urinaria (Shatterstone, dried) 15 g (if using fresh, use 30 g); Fresh pig liver 150 g; Goji berry (Fructus Lycii) 10 g; Fresh ginger (Rhizoma Zingiberis Recens) 5 slices (approx. 10 g); Water 1500 ml; Salt to taste (recommended no more than 2 g, add before serving); Cooking oil 3 ml (for marinating the liver); Cooking wine 5 ml (to remove odor and enhance flavor).

In this formula, the ratio of Pearl Grass (Phyllanthus urinaria) to pork liver is approximately 1:10, which ensures the effect of clearing heat and draining dampness without making the formula too strong in flavor. The addition of Goji Berry (Lycium barbarum) and Ginger (Zingiber officinale) makes the whole formula more comprehensive, addressing both nourishing yin and warming the stomach. If used for prevention and health maintenance, reduce Pearl Grass to 10 grams and increase pork liver to 180 grams, with emphasis on nourishing blood; if used for regulating damp-heat with red eyes, increase Pearl Grass to 20 grams and reduce pork liver to 120 grams, with emphasis on clearing and draining.

Preparation method

Step 1: Prepare the ingredients. Rinse *Phyllanthus urinaria* (Chamber Bitter / Pearl Grass) quickly under running water twice to remove surface dust, then place in a gauze sachet and tie the opening (or add directly to the pot and filter before serving). Wash fresh pork liver under running water, then slice into thin pieces about 0.3 cm thick. Place in a bowl, add cooking wine, a pinch of salt, and cooking oil. Mix well and marinate for 10 minutes. Briefly soak *Lycium barbarum* (Goji Berry) in warm water. Slice fresh *Zingiber officinale* (Ginger).

Step 2: Prepare the Decoction. Use a clay pot or stainless steel pot, add 1500 ml of clean water, then place a gauze bag of _Phyllanthus urinaria_ (Chamber Bitter) and sliced fresh _Zingiber officinale_ (Ginger). Bring to a boil over high heat, then reduce to low heat and simmer for 20 minutes, until the medicinal aroma is released and the liquid turns slightly yellow. This step is crucial for the therapeutic effect of the decoction; the active constituents of _Phyllanthus urinaria_ require thorough decoction to be fully extracted.

Step 3: Blanch the pork liver. Place the marinated pork liver slices one by one into the boiling pearl herbal decoction, quickly separate them with chopsticks, and cook for about 30 to 40 seconds until the liver changes color and is just cooked through. Note that it should not be cooked for too long, otherwise the liver will become tough and hard, affecting the texture and digestion/absorption.

Step 4: Seasoning and serving. Before turning off the heat, remove the gauze bag of *Phyllanthus urinaria* (Pearl Grass) and discard. Add the pre-soaked *Lycium barbarum* (Goji Berries). Season with an appropriate amount of salt according to personal preference, stir well, and then ladle into bowls. When serving, the soup can be consumed together with the pork liver. The liver slices are tender, and the soup has a clear, mellow flavor.

Tips for Administration

1. Optimal consumption time and frequency: It is recommended to consume pig liver in the morning or afternoon when yang qi is most abundant, as the spleen and stomach’s transportation and transformation functions are strongest during these periods, facilitating nutrient absorption. Consume 2 to 3 times per week, and do not take continuously for more than two weeks. If long-term regulation is needed, take a one-week break before resuming. Avoid excessive consumption of pig liver in the evening to prevent increasing the digestive burden.

2. Constitutional Adjustment Method: If one experiences pronounced deficiency fire symptoms, such as dry mouth and throat, 10g of Mai Dong (Ophiopogon japonicus, Dwarf Lilyturf) may be added to the decoction to enhance the action of nourishing yin and moistening dryness. If accompanied by constipation and scalding pain during urination, add 10g of Che Qian Cao (Plantago asiatica, Plantain Herb) to strengthen the effect of clearing and draining damp-heat. However, it is recommended to consult a professional Chinese medicine practitioner before modifying the herbal formula to ensure appropriate compatibility.

3. Dietary Preparation Precautions: Pork liver (sus scrofa domesticus) is a detoxifying organ and must be thoroughly rinsed under running water before consumption, then cooked thoroughly until well-done to eliminate pathogenic microorganisms. Do not shorten cooking time in pursuit of a tender texture, nor should the liver be boiled together with Pearl Grass (Phyllanthus urinaria) for an extended period. Additionally, during consumption, reduce intake of spicy, greasy, and high-sugar foods to avoid generating Dampness and Heat, which could compromise the efficacy of the soup.