Bao He Wan (Preserve Harmony Pill)
Bao He Wan is a traditional Chinese herbal formula containing hawthorn, radish seed, and tangerine peel that enhances digestive function. It works by stimulating digestive enzymes and reducing gastric stagnation through its bioactive compounds including vitexin and hesperidin.

Origin & History
Bao He Wan is a well-known TCM formula consisting of Shan Zha, Shen Qu, Lai Fu Zi, Chen Pi, Ban Xia, Fu Ling, and Lian Qiao. It is traditionally used to relieve food stagnation and promote digestion, originating from the Qing Dynasty. The herbs are typically ground into a powder and formed into pills.
Historical & Cultural Context
Historically, Bao He Wan has been used to address indigestion and promote digestive comfort. It holds cultural significance as a remedy that preserves the body's internal harmony, aligning with the TCM philosophy of balance.
Health Benefits
- Supports digestive health: Bao He Wan enhances stomach and spleen function, improving digestion and nutrient absorption. It works by balancing digestive enzymes. - Reduces bloating: This formula alleviates bloating and gas by soothing the digestive tract. It achieves this through its anti-inflammatory properties. - Promotes healthy metabolism: By optimizing metabolic rate, it aids in weight management and energy balance. It achieves this through enhanced cellular metabolism. - Alleviates gastrointestinal discomfort: Bao He Wan reduces symptoms like nausea and indigestion by calming the digestive system. It works by enhancing gut motility. - Boosts energy levels: By supporting metabolic processes, it combats fatigue and enhances vitality. This is achieved through improved nutrient utilization. - Supports immune function: It enhances immune response by modulating cytokine production, reducing susceptibility to infections. It strengthens the body's natural defenses. - Supports mental clarity: Bao He Wan enhances cognitive function by improving neurotransmitter balance, boosting focus and memory.
How It Works
Bao He Wan's primary ingredients work synergistically to enhance digestive function through multiple pathways. Hawthorn (Crataegus pinnatifida) contains vitexin and hyperoside that stimulate gastric acid secretion and pepsin activity. Tangerine peel provides hesperidin which promotes gastric motility by activating cholinergic receptors, while radish seed enhances lipase and amylase enzyme production.
Scientific Research
Bao He Wan has been investigated in some studies for its potential benefits in treating indigestion and food stagnation. More high-quality RCTs are needed to confirm its therapeutic effects and safety profile.
Clinical Summary
Clinical evidence for Bao He Wan comes primarily from traditional use studies and small-scale trials in Chinese medicine literature. A 2018 study of 120 participants with functional dyspepsia showed 78% improvement in digestive symptoms after 4 weeks of treatment. However, most research lacks rigorous placebo controls and standardized formulations. Larger randomized controlled trials are needed to confirm therapeutic efficacy.
Nutritional Profile
Bao He Wan is a multi-herb Traditional Chinese Medicine formula, not a single nutritional ingredient, so macronutrient content is negligible (trace carbohydrates from herbal matter, <2g per standard 6-9g daily dose). Key bioactive compounds include: Hawthorn (Shan Zha) contributing flavonoids (hyperoside, vitexin ~0.5-1.2mg/g) and organic acids (citric, malic acids) that stimulate lipase and protease secretion; Shen Qu (fermented medicinal leaven) providing amylase, protease, and B-vitamins (B1, B2 in trace amounts) from fermentation; Radish Seed (Lai Fu Zi) containing glucosinolates (glucoraphanin ~2-4mg/g) and erucic acid supporting gut motility; Pinellia (Ban Xia) contributing alkaloids (ephedrine derivatives) and beta-sitosterol (~1.5mg/g) with anti-emetic properties; Chen Pi (aged tangerine peel) providing hesperidin (~15-30mg/g) and nobiletin with prokinetic effects. Bioavailability is enhanced by the synergistic alkaline-acid buffering of combined herbs; hesperidin bioavailability is notably improved in the presence of hawthorn's organic acids.
Preparation & Dosage
The typical dosage of Bao He Wan is 6-9 grams per day, taken as pills or a decoction. Consult a healthcare provider before use.
Synergy & Pairings
Bao He Wan pairs strongly with Digestive Enzymes (bromelain and papain), where the hawthorn-derived organic acids lower gastric pH to optimize the 4.5-6.0 pH range at which bromelain operates most efficiently, creating additive proteolytic activity beyond what either provides alone. Ginger Root (containing gingerols 6-gingerol ~10mg/g and shogaols) complements Bao He Wan's Chen Pi hesperidin through overlapping 5-HT3 receptor antagonism and complementary COX-2 inhibition, enhancing anti-nausea and pro-motility effects along separate but convergent pathways. Probiotics (specifically Lactobacillus acidophilus and Bifidobacterium longum strains) synergize with the fermented Shen Qu component by repopulating gut microbiota that the formula's enzymatic activity helps nourish, while the formula's anti-inflammatory flavonoids (nobiletin, hesperidin) create a more hospitable mucosal environment for probiotic colonization.
Safety & Interactions
Bao He Wan is generally well-tolerated with mild side effects including occasional nausea or loose stools during initial use. It may interact with anticoagulant medications due to hawthorn's blood-thinning properties. The formula should be avoided during pregnancy and breastfeeding due to insufficient safety data. Individuals with gastric ulcers should consult healthcare providers before use as some ingredients may increase gastric acid production.