Home-Style Dishes
Yam, Dendrobium and Goji Double-Boiled Mallard Duck (Shui Ya Dun Tang)
Traditionally used to nourish yin, strengthen the body, and support appetite and vision
In short: Yam, Dendrobium and Goji Double-Boiled Mallard Duck (Shui Ya Dun Tang) is a home-style dishe that Traditionally used to nourish yin, strengthen the body, and support appetite and vision. It is most often made for digestive wellness, eye wellness, everyday balance. Total time about 140 min. Key ingredients: chinese yam, goji berries, ginger, red dates.
Why people make this soup
When the weather turns cool, most people reach for warming soups and tonics — but for those who run warm, tend to stay up late, or have a constitution that heats up easily, the usual ginger-heavy or yang-tonifying soups can leave them feeling overheated and irritable. This is where mallard duck (shui ya, sometimes called teal) shines. Unlike regular duck, mallard has significantly less fat and a cleaner, more neutral quality — it tonifies without causing the internal heat that richer birds might. Double-boiled with fresh yam (which strengthens the digestive system), fresh dendrobium (which nourishes fluids and soothes the stomach), goji berries (for the eyes and blood), ginger, and red dates, the resulting broth is deeply flavourful, sweet, and gently restorative. It’s a soup that bridges the gap between autumn and winter — warming enough for the season, but light enough for those who tend to overheat.
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.
- Dendrobium
Salivary flow rate and oral mucosal scores improved more in the Dendrobium group than in the control group using vitamin B12 rinse alone (P < .05). Serum IL-10 rose from baseline, and oral bacterial composition differed.Limitation: Small single-hospital sample; the Dendrobium group also used the B12 rinse, and the abstract does not say whether the control group received a placebo drink.PubMed 39811879 · 2 more dendrobium studies - Goji berries
Compared with placebo (n=80), the goji juice group (n=81) reported greater improvements in several self-rated symptoms, including stress, mental acuity, sleep quality and overall well-being, under a random effects model.Limitation: Outcomes were self-reported symptom questionnaires, and several symptoms showed significant heterogeneity across the four pooled trials of a single branded juice.PubMed 22897500 · 3 more goji berries studies - Ginger
Overall, acute and delayed nausea and vomiting did not differ significantly between ginger and control groups. A subgroup taking 1 g/day or less for over four days had less acute vomiting (OR 0.30).Limitation: Clinical heterogeneity between trials required subgroup analyses, and the authors state that sufficiently large, high-quality RCTs are still needed.PubMed 36501010 · 3 more ginger 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.
Ingredient notes for this recipe
- Goji berries: A few cases of raised INR (a bleeding-risk marker) have been reported in people taking warfarin after drinking concentrated goji tea or wine. If you take a blood thinner, check with your doctor. Source: Memorial Sloan Kettering — Lycium
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
Members only
Unlock the full method & Nourilo's tips
One payment, lifetime access to every one of our 2,344 recipes — step-by-step methods, preparation tips and serving notes.
- Full step-by-step method for this and all 2,344 recipes
- Nourilo's Tips — sourcing, substitutions and serving notes
- One-time payment · card, Apple Pay or Google Pay · no subscription, no renewals
Checking your access…
$59.99 one-time · all recipes
Sign in or create a free account, then pay once by card, Apple Pay or Google Pay.
Continue with GoogleBy continuing with Google or email you confirm you are 16 or older and agree to our Terms of Use and Privacy Policy.
$59.99 one-time · all recipes
Signed in as ·
Secure checkout by Stripe. One-time payment, no renewals. Access is linked to your Nourilo account and never expires. By paying you agree to our Terms of Use; you can get a full refund within 14 days (refund policy).
Comments
Join the conversation — sign in or create a free account to comment.
Continue with GoogleBy continuing with Google or email you confirm you are 16 or older and agree to our Terms of Use and Privacy Policy.
Loading comments…