Soups
Green Olive, Carrot, Sweet Corn and Frog Leg Soup
Traditionally used to nourish yin, clear heat, reduce thirst and support those managing blood sugar
Why people make this soup
One of the most difficult aspects of type 2 diabetes is the persistent cycle of thirst: because blood glucose draws water out of cells through osmosis, the kidneys work overtime, urine volume increases, and the body loses fluid faster than usual — creating a constant feeling of dryness and thirst. In Cantonese food therapy, the approach here is to nourish yin and clear heat — essentially supporting the body’s moisture and cooling systems. Sour and astringent fruits such as green olives, Chinese olive (you gan zi) and guava have long been included in diabetes-related food regimens for their traditionally observed association with better glucose management. Green olives (qing lan) in particular appear frequently in these recommendations. This soup combines them with the natural sweetness of carrot and corn and the gentle protein of frog leg (a lean, cooling meat well liked in Cantonese cooking) for a soup that is pleasant to drink and broadly suitable for the whole family.
Who it suits / who should be cautious
- Helpful for those managing diabetes who frequently experience thirst, a dry mouth, irritability or mild oedema.
- Also beneficial for anyone with cardiac or renal oedema.
- Suitable for pregnant women — lean pork can be added alongside or as a substitute for frog leg.
- Very gentle and balanced; Bro Niu considers this soup appropriate for essentially anyone.
- For a vegetarian version, replace frog leg with fresh Chinese yam (half a piece) — yam is also traditionally considered beneficial for blood sugar management.
Why these ingredients (the food-therapy logic)
- Green olives (qing lan): Sour and slightly astringent in flavour; traditionally associated with supporting blood glucose regulation, clearing the throat and soothing thirst. Lightly crushing them before cooking allows more flavour to be released.
- Carrot (gan sun): Sweet and neutral; rich in beta-carotene and fibre; widely included in food-therapy soups for eye health and general vitality.
- Sweet corn (su mi): Mildly sweet and diuretic; helps with fluid regulation and has a pleasant natural sweetness that makes the soup approachable.
- Frog leg (tian ji): Lean, clean protein with a cooling nature in Chinese food thinking; traditionally used to supplement yin and clear heat. Lean pork or fresh Chinese yam work as substitutes.
- Ginger: A few slices balance the cooling nature of the other ingredients.
Ingredients (4 bowls)
| Ingredient | Amount | Notes |
|---|---|---|
| Green olives | 15 pieces | Rinse; gently crush or score each olive |
| Carrot | 1 medium | Peel, cut into chunks |
| Sweet corn | 2 cobs | Remove husks, cut into sections |
| Frog legs | 3–4 frogs | Clean thoroughly; blanch briefly before using |
| Ginger | 2 slices |
Method
- Rinse and lightly crush or score the green olives to help release their flavour.
- Peel and chop the carrot into chunks. Remove husks and cut the corn into sections.
- Clean the frog legs thoroughly and blanch briefly in boiling water; drain and discard the blanching water.
- Place all ingredients into a pot with 8 bowls of water. Bring to a boil.
- Reduce heat and simmer gently for 1.5 hours until you have approximately 4 bowls of soup.
- Serve warm. Eating the ingredients as well as drinking the soup is recommended.
Bro Niu’s tips
This soup is naturally sweet and pleasant — a good choice for anyone who finds dedicated “herbal” soups too medicinal in flavour. Bro Niu notes it is quite a balanced soup: in addition to its blood-sugar-supportive qualities, it helps clear the throat, benefits the voice and is supportive for both cardiac and kidney-related fluid retention. Those who prefer a vegetarian version can substitute the frog leg with half a fresh Chinese yam — yam itself is well regarded in traditional food therapy for those managing blood sugar.
Community questions answered (selected)
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Q (Fanny Law): Can this soup be made vegetarian — without the frog leg? Is the main benefit from the green olives? Bro Niu: Yes — use half a piece of fresh Chinese yam in place of the frog leg. Chinese yam is beneficial for those with diabetes.
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Q (Mai): Can pregnant women drink this soup? Can lean pork or black chicken be used instead of frog leg? Bro Niu: Yes, pregnant women can drink this soup. You can add lean pork and cook it together.
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Q (Susanna): Are there any people who should not drink this soup, or is it suitable for the whole family? Bro Niu: This soup is very mild and balanced — it is suitable for essentially anyone.
Published May 26, 2021 · Adapted and translated for Nourilo from a traditional home-kitchen recipe. Approx. 4 min read.
