Damp-Heat Constitution: 10 Cooling Foods to Eat (Shi Re)

The damp-heat type runs hot and humid on the inside. Oily face, breakouts, bitter taste on waking, and stools that never quite finish. The tongue gives it away — yellow, greasy coat (Thomson Medical, 2024).

Wang Qi mapped this pattern as part of a nine-constitution model built from a survey of 21,000+ adults. China wrote it into a national TCM standard in 2009 (Acupuncture Today, 2009).

This guide ranks the ten foods most used to manage Shi Re. Each pick blends classical use with modern data.

What we looked at

• TCM action — which organ systems each food enters and how it drains damp or clears heat
• Modern research — peer-reviewed studies on the food's anti-inflammatory, diuretic, or metabolic effects
• Practical use — how easy it is to source and cook in a US kitchen
• Cost per serving — based on Asian supermarket and standard grocery pricing
• Risk profile — who should avoid or moderate the food

At a glance

#	Food	Primary action	Key compound	Best use
1	Mung bean (lü dou)	Clears heat, drains damp	Vitexin, isovitexin	Summer soup, congee
2	Winter melon (dong gua)	Diuretic, cools	Triterpenes, vit C	Soup with rind on
3	Job's tears (yi yi ren)	Drains damp via spleen	Coixenolide	Porridge, water
4	Green tea	Cools, clears heat	EGCG	Daily, 2-3 cups
5	Bitter melon (ku gua)	Clears liver heat	Charantin	Stir-fry, juice
6	Dandelion (pu gong ying)	Liver damp-heat	Taraxasterol	Tea, salad greens
7	Plantain seed (che qian zi)	Drains via urination	Plantaginin	Decoction
8	Lotus leaf (he ye)	Damp, lipid balance	Nuciferine	Tea, wrap for rice
9	Celery (qin cai)	Cools, mild diuretic	Apigenin	Raw, juice, salad
10	Cucumber (huang gua)	Cools, hydrates	Cucurbitacins	Raw, pickled, soup

1. Mung Bean (Lu Dou) — the front-line damp-heat clearer

Best for: summer heat, acne flares, hangover recovery. How to use: simmer 1 cup with 6 cups water for 45 min. Drink the broth, eat the beans. Cost: ~$0.25 per serving.

Mung bean is the textbook damp-heat food. In TCM it is sweet, cold, and enters the Heart and Stomach channels. It clears heat toxins and pushes fluids out (Me & Qi, 2024).

Vitexin and isovitexin are the lead flavonoids. Both show antioxidant and anti-inflammatory action in animal models. A 2024 review covered the bean's pharmacology and confirmed traditional use for fevers and skin eruptions (Maxa Press, 2024).

The classic preparation is mung bean soup with rock sugar. For damp-heat, skip the sugar. Sugar feeds dampness.

Strengths

• Cheap, sold at any Asian market
• Works fast on summer heat symptoms
• Pairs well with barley and job's tears

Limitations

• Very cold in nature — people with weak digestion may bloat
• Not for cold-type constitutions

2. Winter Melon (Dong Gua) — the diuretic workhorse

Best for: facial puffiness, lower-body edema, dark urine. How to use: simmer 1 lb cubes with rind on, 60 min, light broth. Cost: ~$0.50 per serving.

Winter melon is sweet, bland, and slightly cold. It enters Lung, Large Intestine, Small Intestine, and Bladder channels. The rind (dong gua pi) is the strongest diuretic part — leave it on when cooking (ResearchGate, 2024).

Animal studies confirm a potassium-sparing diuretic effect from the rind extract. The plant also shows nephroprotective action. A 2025 paper in Scientific Reports explored its role in obesity-linked gut inflammation (Nature, 2025).

Cantonese cooks pair it with dried shrimp or pork bones. For damp-heat, use a vegetable stock and skip the rich meats.

Strengths

• High water, very low calorie
• Rind is the most active part, often discarded
• Stores 4-6 weeks whole at room temperature

Limitations

• Bland on its own — needs aromatics
• Hard to find outside Asian markets in some US regions

3. Job's Tears (Yi Yi Ren) — drains damp through the spleen

Best for: sluggish digestion, joint heaviness, oily skin. How to use: soak 2 hr, simmer 1 cup in 6 cups water for 60 min, eat as porridge. Cost: ~$0.40 per serving.

Job's tears (Coix lacryma-jobi) is sweet, bland, and slightly cool. It tonifies the spleen while draining damp, which makes it gentler than mung bean for daily use (ScienceDirect, 2025).

The seed contains coixenolide, coixol, and a range of triterpenes. These compounds show anti-inflammatory and lipid-modulating effects via NF-κB and AMPK pathways (ScienceDirect, 2018).

In Japan it is called hatomugi and sold for skin care. In China it is everyday porridge food. Pair with red bean for the classic damp-clearing pot.

Strengths

• Safe for long-term daily use
• Works on both damp and damp-heat
• Doubles as a skin tonic in Japan

Limitations

• Avoid in pregnancy
• Mild laxative effect at high doses

4. Green Tea — daily heat clearer

Best for: afternoon heat, oily skin, mild damp-heat patterns. How to use: 2-3 cups daily, 70-80°C water, 2-3 min steep. Cost: ~$0.20 per cup.

Green tea is bitter, sweet, and slightly cold. It clears heat from the upper jiao and supports digestion when taken between meals.

EGCG is the lead catechin. A 2024 review in Antioxidants covered its anti-inflammatory effects on skin, including acne and rosacea (MDPI, 2024). A meta-analysis of five RCTs found topical and oral green tea both reduced inflammatory acne lesions (Wiley, 2020).

For damp-heat skin issues, a 3% green tea emulsion lowered sebum in male volunteers over 8 weeks (PMC, 2017).

Strengths

• Cheap, available everywhere
• Both internal and topical use is supported
• Light caffeine boost without coffee's heat

Limitations

• Late-day cups can disrupt sleep
• Cold-stomach types should drink warm only

5. Bitter Melon (Ku Gua) — the liver-heat specialist

Best for: high glucose, liver heat signs, summer rashes. How to use: slice thin, salt 10 min, stir-fry with garlic and egg. Cost: ~$1.20 per serving.

Bitter melon is bitter, cold, and enters Heart, Spleen, and Lung channels. It clears summer heat and brightens vision per classical use.

Charantin is a steroidal saponin mixture with insulin-like action. A 2025 GRADE-adherent meta-analysis covered 25 RCTs in prediabetic and type 2 diabetic adults and found modest glycemic effects (ScienceDirect, 2025). A 12-week Korean RCT showed reduced post-meal glucose at 30 min (PMC, 2023).

The bitterness is the active part. Don't soak it out. Salt-rubbing for 10 min cuts the harshness without killing the compounds.

Strengths

• One of the strongest food-based bitters available
• Active research base for blood sugar
• Pairs well with eggs or black bean sauce

Limitations

• Strong taste turns off many palates
• Not for pregnant women or hypoglycemics

6. Dandelion (Pu Gong Ying) — clears liver damp-heat

Best for: liver-heat headache, breast tenderness, mild infections. How to use: 1 tbsp dried root in 8 oz water, simmer 10 min. Or eat fresh greens. Cost: ~$0.30 per cup.

Dandelion is bitter, sweet, and cold. It enters Liver and Stomach channels and is the go-to in TCM for damp-heat with toxic features — boils, mastitis, jaundice (Herbal Reality, 2024).

Taraxasterol is the lead active compound. A 2025 Pharmaceuticals review covered hepatoprotection: extracts lowered ALT, AST, and oxidative markers via the Nrf2/HO-1 pathway (PMC, 2025). A 2025 paper showed taraxasterol improves glycolipid metabolism in fatty liver disease (ScienceDirect, 2025).

The fresh greens are bitter. Blanch 30 sec, dress with sesame oil and rice vinegar.

Strengths

• Strong research base for liver
• Both root and leaf are usable
• Grows wild — free if you can identify it

Limitations

• Avoid with gallstones or bile-duct obstruction
• Can interact with diuretic and lithium meds

7. Plantain Seed (Che Qian Zi) — drains damp-heat via the bladder

Best for: painful urination, urinary tract heat, leukorrhea. How to use: 10-15g in cheesecloth, simmer 20 min in 4 cups water. Cost: ~$0.50 per serving.

Plantain seed is sweet and cold. It enters Liver, Kidney, Lung, and Small Intestine channels. The classical job is to drain damp-heat from the Lower Jiao — exactly the burning-urination, urgency, and discharge picture (Me & Qi, 2024).

It is a staple in Ba Zheng San, the formula for hot urinary syndromes (Sacred Lotus, 2024). The seed is rich in mucilage and flavonoids. Preclinical work shows ACE inhibition and antioxidant action.

The leaf (che qian cao) covers similar ground and is easier to forage. Both should be bagged in cheesecloth before decocting — the seed is small.

Strengths

• Targeted for urinary damp-heat
• Cheap, sold at Chinese pharmacies
• Pairs well with mung bean and job's tears

Limitations

• Tastes bland to bitter
• Not for incontinence or weak-bladder patterns

8. Lotus Leaf (He Ye) — damp-heat with lipid issues

Best for: summer heat with heaviness, fatty liver picture, weight management. How to use: 5-10g dried leaf, steep 10 min as tea. Or wrap rice for steaming. Cost: ~$0.40 per cup.

Lotus leaf is bitter, mildly astringent, and neutral to cool. It clears summer heat, raises spleen yang, and stops bleeding. It has been used for weight management since the Ming Dynasty (MDPI, 2022).

Nuciferine is the lead aporphine alkaloid. A 2025 paper in Food Chemistry showed flavonoid-rich lotus leaf extract corrected gut dysbiosis and boosted brown fat thermogenesis in mice (ScienceDirect, 2025). A separate 2025 study covered gut-flora pathways for the obesity effect (ScienceDirect, 2025).

Cantonese lo mai gai uses the leaf as a wrapper. The aroma passes into the rice and adds light bitter notes.

Strengths

• Mild — safe for long-term tea use
• Two clear roles: heat clearing and metabolic support
• Pleasant grassy aroma in cooking

Limitations

• Most data is animal-based
• Avoid in pregnancy and with low blood pressure

9. Celery (Qin Cai) — daily damp-heat support

Best for: mild hypertension, irritability, low-grade liver heat. How to use: raw in salads, juiced, or stir-fried with tofu. Cost: ~$0.30 per serving.

Celery is sweet, bitter, and cool. It enters Liver and Stomach channels. It calms liver yang and clears damp-heat patterns marked by red face and irritability.

Apigenin is the standout flavonoid. It shows anti-inflammatory action across multiple cell models. Western herbalists use celery juice as a diuretic.

The Chinese variety (Apium graveolens var. dulce) is thinner and more aromatic than US celery. Both work for damp-heat use.

Strengths

• Cheap, easy to find anywhere
• Raw or cooked both work
• Pairs with tofu, beef, or shrimp

Limitations

• Modest action — better as daily support than acute fix
• High in sodium if salted heavily

10. Cucumber (Huang Gua) — the cooling end-of-list pick

Best for: acute summer heat, thirst, oily-skin flushes. How to use: raw with sesame oil and vinegar, or salt-pickled overnight. Cost: ~$0.40 per serving.

Cucumber is sweet, cool, and enters Spleen, Stomach, and Large Intestine channels. It clears heat and quenches thirst. The peel is the most active part — leave it on if organic (Selby Acupuncture, 2024).

Cucurbitacins are the bitter compounds in the peel and stem. They show anti-inflammatory and mild diuretic effects. The 96% water content alone is a flush for damp-heat days.

Classic Sichuan smashed cucumber pairs it with garlic and vinegar. For damp-heat, keep the garlic light — garlic is warming.

Strengths

• Cheapest cooling food in any grocery store
• No prep needed beyond a knife
• Works as side dish or quick juice

Limitations

• Cold — not for cold-stomach types or winter use
• Conventional peels carry pesticide residue, buy organic if eating skin

Foods to avoid with damp-heat

Diet alone does not fix damp-heat. But certain foods make it worse fast.

• Alcohol — beer is the worst offender for damp-heat. Spirits add heat. Even daily wine builds the pattern.
• Fried and greasy food — generates damp and heat in the middle jiao. Cut deep-fried items first.
• Spicy and pungent food — chili, raw onion, raw garlic, lamb. These feed the heat side.
• Dairy — milk and cheese are dampening per TCM. Yogurt is better tolerated but still mucus-forming.
• Refined sugar — feeds damp directly. Sweet drinks and pastries should drop.

The standard cooling diet draws on cucumber, watermelon, mung bean, winter melon, celery, and barley as daily staples (Joy Walraven, 2024).

Frequently asked questions

How do I know if I have damp-heat constitution? The signs cluster: oily skin with acne, bitter taste in the mouth on waking, yellow greasy tongue coat, dark or scant urine, irritable mood, sticky stool, and feeling worse in humid heat. A TCM practitioner uses Wang Qi's 60-question scale to score nine constitutions and rank your dominant pattern.

Can I eat warming foods at all with damp-heat? Yes, in moderation. The pattern is about ratio. Aim for two-thirds cooling and draining foods, one-third neutral, and only small amounts of warming items like ginger or scallion. Pure cold diets can hurt digestion over months.

How long does it take to shift a damp-heat constitution? Wang Qi's clinical work suggests 3-6 months of consistent diet and lifestyle changes to shift constitutional patterns. Acute symptoms like acne or bitter mouth often improve within 2-4 weeks. The deeper pattern takes longer.

Is damp-heat the same as inflammation? Not exactly. Damp-heat overlaps with chronic low-grade inflammation but covers more — fluid stagnation, fermentation in the gut, urinary signs, and emotional irritability. The foods listed often have anti-inflammatory data, but the TCM frame is broader.

Can I take all ten foods every day? Pick three to five and rotate. Mung bean soup, green tea, and cucumber make a strong daily base. Add bitter melon or dandelion two to three times a week. Plantain seed and lotus leaf are short-course tools, not daily food.

Related Reading

• How to Identify Your TCM Body Type — Self-Assessment Guide
• TCM Morning Routine — Food Principles
• Autumn TCM Foods — Moistening the Lungs

-- The Yao Shan Guide Team