As Hong Kong swelters under soaring summer temperatures, many residents reach for a classic Cantonese remedy: mung bean soup. But beyond its reputation as a simple cooling dessert, this humble legume packs surprising health benefits—and, according to traditional Chinese medicine (TCM) practitioners, pairing it with the right herbs can transform it into a targeted tonic for everything from insomnia to liver protection.
The Summer Health Wake-Up Call
Summer’s heat often leaves people feeling irritable, parched, and restless at night. Taiwanese TCM physician Dr. Alice (艾莉絲) explains that these symptoms signal an imbalance of “excessive internal heat, dryness, and dampness” in the body. Drinking mung bean soup helps clear that heat, and adding specific Chinese herbs can address individual health concerns.
Hong Kong Legislative Council member Chan Kin-por recently discussed mung bean’s benefits alongside Professor Bian Zhaoxiang, head of the Clinical Division at Hong Kong Baptist University’s School of Chinese Medicine. Their conversation highlighted two key advantages:
Liver protection and detoxification. According to the Dictionary of Chinese Materia Medica, mung beans contain high levels of flavonoids. These compounds form a protective layer around liver cells, shielding them from harmful substances such as pesticide residues and alcohol. This makes mung bean soup especially beneficial for regular drinkers.
Cardiovascular support. Modern animal studies suggest mung beans have antioxidant properties that help lower blood lipids and cholesterol. They also aid in breaking down triglycerides, contributing to better heart and brain vascular health.
Three TCM-Approved Recipes for Customized Relief
Dr. Alice recommends these three variations, each targeting a different imbalance:
1. Mung bean with tangerine peel, poria, and ginger
- Benefits: Strengthens the spleen, regulates Qi, clears heat, and dispels dampness.
- Ideal for: People with damp-heat in the spleen and stomach, heavy limbs, loose stools, and poor digestion.
- Suggested quantities: Tangerine peel 10g, poria (茯苓) 5g, fresh ginger 1 slice.
2. Mung bean with lotus seed and lily bulb (“Calming Mung Bean Soup”)
- Benefits: Clears heart fire, calms the mind, strengthens the spleen, and nourishes the kidneys.
- Ideal for: Those under chronic stress, emotional instability, or suffering from poor sleep quality.
- Suggested quantities: Lotus seeds 20g, dried lily bulb 15g.
3. Mung bean with rose and chrysanthemum
- Benefits: Chrysanthemum clears heat and detoxifies; rose soothes the liver and relieves depression.
- Ideal for: Symptoms of liver fire such as dizziness, tinnitus, dry mouth, bitter taste, and red, irritated eyes.
- Suggested quantities: Dried rose buds 10g, dried chrysanthemum 5g.
Who Should Be Cautious?
Professor Bian cautions that because mung beans are naturally cooling, they should not be consumed daily—two to three times per week is sufficient. People with a cold constitution, weak digestion, or those menstruating should avoid them.
Dr. Ma Honghuan, a nephrologist in Taiwan, adds an important warning: mung beans are a starchy staple food, not just a snack. One bowl of cooked mung beans counts as two servings of carbs—equivalent to half a bowl of rice. Overconsumption can spike blood sugar and, over time, accelerate chronic kidney disease.
Can kidney patients eat mung beans? Yes, but strictly within recommended portions. One bowl of mung bean soup (with beans) should replace half a bowl of rice in a meal, not be added on top of it.
The Bigger Picture: Balancing Tradition with Modern Nutrition
Mung bean soup exemplifies how ancient dietary wisdom can meet modern nutritional science. Its affordability and versatility make it an accessible summer staple across Hong Kong. Yet experts stress that “more is not better.” Tailoring the recipe to one’s constitution—and respecting portion limits—turns a simple dessert into a truly functional food.
For readers interested in related healing foods, explore our guides on bitter gourd for acne relief, or how mung bean soup can support gut health for weight management. But always consult a TCM practitioner or dietitian before using any herbal remedy as treatment.
Note: Individual constitutions vary. This article is for informational purposes only and does not replace professional medical advice.