Soups

Burdock Root, Phyllanthus (Oil Gan Zi) and Water Chestnut Soup

traditionally associated with supporting healthy blood sugar levels and weight management

In short: Burdock Root, Phyllanthus (Oil Gan Zi) and Water Chestnut Soup is a soup that traditionally associated with supporting healthy blood sugar levels and weight management. It is most often made for weight & metabolism, blood sugar balance. Total time about 135 min. Key ingredients: burdock root, water chestnuts, carrot, lean pork.

Prep
15 min
Cook
120 min
Total
135 min
Makes
1.2 L
Burdock Root, Phyllanthus (Oil Gan Zi) and Water Chestnut Soup

Why people make this soup

People with diabetes are often told to be careful with sweet fruit — and that is sound advice for high-sugar varieties. But Nourilo points out that tart, astringent fruits are a different story: sour and astringent-tasting fruits like guava, fresh hawthorn, phyllanthus (Indian gooseberry), and kiwi are actually associated in Chinese dietary tradition with helping to regulate blood sugar. The day this soup came together, Nourilo had spotted both fresh phyllanthus and newly arrived slender burdock root at a herbal produce stall — the slender variety having a stronger flavour and better therapeutic quality than the thick ones. Water chestnut and carrot were added to balance out the tartness of the phyllanthus and add a natural sweetness. The result is a satisfying, lightly sweet-sour soup that is equally good as a general health soup for the whole family, and particularly suitable for weight management and cardiovascular support.

Method

  1. Peel the burdock root and carrot; cut both into chunks. (Burdock skin is edible — just scrub it thoroughly if you prefer to leave it on.)
  2. Peel the water chestnuts.
  3. Wash phyllanthus fruit and crack each one gently with the flat of a knife.
  4. Slice the pork and blanch briefly in boiling water. Drain.
  5. Add all ingredients to a clay, ceramic, or stainless steel pot with 2.4 L of cold water.
  6. Bring to a boil over high heat, then reduce to a medium-low simmer.
  7. Cook for approximately 2 hours until you have about 1.2 L of soup. Drink the soup and eat the solid ingredients.

Nourilo’s Tips

Choose slender burdock roots over thick ones — they are more fragrant and considered more therapeutically effective. If you live somewhere where phyllanthus is not available (such as overseas), guava or kiwi fruit are reasonable substitutes: both are tart, low-sugar fruits that carry a similar association in Chinese dietary wisdom. This soup is also suitable for cooking in a steamer (zheng dun), but allow 2–3 hours of steaming time. Adding a little walnut, chestnut, or black wood-ear fungus is fine for variety.

What studies say about the key ingredients

Traditional use is not the same as clinical proof. Here is the strongest human research we found for each ingredient, limitations included.

  • Burdock root · Randomized controlled trial, 60 participants · 2026
    Compared with placebo, root powder was associated with higher superoxide dismutase and catalase, lower malondialdehyde and C-reactive protein, and smaller ovarian volumes. Hirsutism and menstrual frequency results are not reported in the abstract.Limitation: Small single-centre trial of 60 women, recruited by convenience sampling. The 460 mg/day dose is much smaller than typical food intake.PubMed 41757842 · 2 more burdock root studies

From the Nourilo Research Library. Findings come from specific doses, extracts and populations and may not apply to a home-cooked recipe.

Safety first — read before you cook

This is a traditional food, not a treatment. Please check with your doctor or pharmacist before making it a regular part of your diet if you:

  • are pregnant or breastfeeding, or are cooking for a young child;
  • take regular medicines — especially blood thinners, blood-pressure, diabetes or immune-suppressing drugs;
  • have a kidney, liver or heart condition, or a known food allergy.

Stop eating it and seek advice if you notice an allergic reaction or feel unwell. Safety notes reviewed 8 October 2026 · How we write safety notes

Spot an error? Report a correction

Frequently asked questions

Who is this soup traditionally considered suitable for?

This soup is traditionally associated with supporting healthy blood sugar levels and weight management, and is also described as suitable for those with heart conditions or who are overweight. It is equally good as a general health soup for the whole family.

Why is phyllanthus used in this soup rather than sweeter fruits?

In Chinese dietary tradition, sour and astringent-tasting fruits such as phyllanthus (Indian gooseberry) are associated with helping to regulate blood sugar, making them a different story from high-sugar varieties. Water chestnut and carrot are added to balance out the tartness of the phyllanthus and add a natural sweetness.

Does it matter what type of burdock root I use?

The recipe recommends choosing slender burdock roots over thick ones, as they are more fragrant and considered more therapeutically effective.

What pot should I use to cook this soup?

Because phyllanthus is acidic, the recipe requires a non-reactive pot — clay, ceramic, or stainless steel. A reactive metal pot should be avoided.

How long does this soup take to make and how much does it yield?

Preparation takes about 15 minutes and the soup simmers for approximately 2 hours, giving a total time of around 2 hours and 15 minutes. The finished soup yields approximately 1.2 litres.

Answers this recipe appears in

Comments

Loading comments…