What is Bao He Wan?

Bao He Wan, which translates to 'Preserve Harmony Pill,' is one of the most widely used classical Chinese herbal formulas for digestive complaints. It was first recorded in the Danxi Xinfa (Teachings of Danxi) by Zhu Danxi around 1347 CE and remains a staple in both traditional Chinese medicine clinics and modern Chinese pharmacies. The formula combines seven herbs that are traditionally used together to support movement of food through the digestive system, ease nausea, and reduce gut discomfort.

How does Bao He Wan work?

Each herb in the formula is thought to play a specific role: hawthorn fruit (Shan Zha) is traditionally used to help the digestion of fats and meats, fermented leaven (Shen Qu) is used to support digestion of grains and alcohol, and radish seed (Lai Fu Zi) is believed to move qi downward to relieve bloating and gas. Pinellia and aged tangerine peel are traditionally used to calm nausea and help the stomach relax, while Poria mushroom is thought to support overall gut health and ease the nervous system's influence on digestion. Forsythia fruit is used in traditional practice to address heat or irritation in the gut.

What forms does Bao He Wan come in?

Traditional pills (wan) are the classic form — small honey-bound pellets taken with warm water. Modern versions include compressed tablets, capsules, and granules dissolved in hot water. Pills and tablets are most convenient for on-the-go use after meals; granules are preferred by practitioners who want faster absorption. All forms are widely available in Chinese herbal pharmacies and online. Decoctions (boiled from raw herbs) are the most potent but least practical form.

Where it comes from:

Bao He Wan was created by the famous Song-Jin-Yuan dynasty physician Zhu Danxi (Zhu Zhenheng, 1281–1358 CE), who is considered one of the four great masters of Chinese medicine. He developed the formula as a safe, gentle remedy for the common problem of 'food stagnation' — a concept in TCM describing the digestive system becoming overwhelmed and sluggish after excess eating or drinking. The formula has remained essentially unchanged for nearly 700 years and is still one of the top-selling patent herbal formulas in China today.

What does Bao He Wan help with?

• Bloating and gas after eating: In traditional practice, radish seed (Lai Fu Zi) and aged tangerine peel are used to help move stagnant qi through the digestive tract and relax the gut wall. Practitioners have long used this combination after large meals for complaints of abdominal distension, though individual responses vary and no controlled trials have verified these effects.
• Indigestion and upset stomach: Hawthorn fruit and fermented leaven are traditionally thought to support the breakdown of fats, proteins, and carbohydrates by encouraging the body's own digestive processes. In traditional practice, this combination is used to ease the sensation of heaviness after rich or mixed meals, though clinical evidence confirming this mechanism is not established.
• Nausea and food stagnation: Pinellia rhizome (Ban Xia) is one of traditional Chinese medicine's most relied-upon herbs for calming an unsettled stomach and reducing nausea. In combination with the other herbs in this formula, it is traditionally used to encourage the downward movement of stomach contents, which practitioners associate with relief from food-related nausea.
• Overeating recovery: Bao He Wan is traditionally used as a remedy following excessive eating — the whole formula is classically associated with the sensation of being uncomfortably overfull. Practitioners have long recommended it in this context, though the timing and degree of benefit will vary by individual.
• Acid reflux and heartburn: In traditional practice, Bao He Wan is used for reflux-like symptoms that are thought to arise from sluggish or inefficient digestion and the build-up of undigested food in the stomach. Practitioners have used it for people whose heartburn appears linked to these patterns, though no clinical trials have confirmed its effect on gastric emptying or acid exposure.
• Sluggish digestion: Several herbs in Bao He Wan, particularly hawthorn fruit and radish seed, are traditionally thought to influence gut motility, though this has not been confirmed in rigorous human clinical trials. In traditional practice, the formula is used by people who chronically feel slow or heavy after eating.
• Functional dyspepsia: Functional dyspepsia — persistent stomach discomfort without a clear structural cause — is exactly the type of complaint Bao He Wan has been used to address for centuries in traditional Chinese medicine. Observational reports from traditional clinical settings suggest it may help reduce symptoms such as fullness and upper abdominal discomfort, but these accounts are not a substitute for controlled clinical evidence.
• Digestive discomfort from fatty or rich meals: Hawthorn fruit is traditionally thought to support bile flow and fat digestion, and practitioners have long used it specifically for discomfort following fatty, greasy, or meat-heavy meals. This is the scenario Bao He Wan was originally formulated for in classical texts, though claims about its ability to stimulate bile or lipase activity in humans remain preliminary and unverified by clinical trials.

What can Bao He Wan help prevent?

• Recurrent indigestion episodes when taken consistently before heavy meals
• Post-meal bloating in people with habitually sluggish digestion

Which foods are rich in Bao He Wan?

Bao He Wan is a prepared herbal formula and is not found in food. However, several of its key ingredients — hawthorn berries, fermented foods, radishes, and tangerines — are foods you can eat to support the same digestive pathways. To naturally support this formula's benefits: (1) Hawthorn berries or hawthorn tea stimulate bile and enzyme secretion just like Shan Zha. (2) Fermented foods like kimchi, sauerkraut, miso, and tempeh provide natural digestive enzymes and probiotics similar to Shen Qu. (3) Daikon radish — especially lightly cooked or pickled — mirrors the gas-moving effects of Lai Fu Zi. (4) Fresh ginger and aged citrus peel (in teas or cooking) calm the stomach similarly to Ban Xia and Chen Pi. (5) Avoid overeating, greasy fried foods, cold raw foods in excess, alcohol, and eating too late at night — these habits directly cause the 'food stagnation' this formula treats.

What are the side effects of Bao He Wan?

• Loose stools or mild diarrhea (most common, especially if taken on an empty stomach or at high doses)
• Mild nausea in rare cases (usually from Ban Xia sensitivity)
• Stomach cramping if taken without adequate water
• Not recommended for long-term daily use without practitioner guidance — designed for acute or intermittent digestive complaints
• Avoid in pregnancy due to Ban Xia content
• Allergic reaction to any component herb (rare but possible: hawthorn or forsythia most likely culprits)

Good to know:

Bao He Wan has an excellent safety profile and has been used by hundreds of millions of people over centuries. Side effects are uncommon and usually mild when the formula is used as directed for short-term digestive complaints.

How much Bao He Wan should you take?

• Recommended daily: Standard adult dose: 6–9 grams of pills (approximately 2–3 teaspoons of small pills) taken 2–3 times daily, OR follow manufacturer's instructions for tablet/capsule forms (typically 4–8 tablets, 2–3 times daily). Traditional dose is 6–9g per serving.
• Best time of day: Take after meals when digestive complaints are present. For prevention before a heavy meal, take 20–30 minutes beforehand.
• With or without food: Best taken immediately after meals with a full glass of warm water. Taking on an empty stomach may cause nausea or loose stools.
• Time to effect: 30–90 minutes for acute relief after a meal; 1–2 weeks for noticeable improvement in chronic digestive patterns
• How long to take it: For acute indigestion or overeating: use as needed for 1–3 days. For chronic sluggish digestion or functional dyspepsia: use for 2–4 weeks, then reassess. Not intended for indefinite daily use without guidance from a TCM practitioner. If symptoms persist beyond 2 weeks, rule out underlying causes.