Ingredient #1Mid
Potatoes
Potatoes is a starchy tuber ingredient. It is not a grain, but it still reads mainly as a starch and energy source. It reads as an mid-tier carb source.
Label analysisGrade DListed ingredientsKibble (Extruded)
Hill's
Hill's d/d Potato & Duck Recipe Dog Food | Hill's Prescription Diet
Editor ingredient insight
Hill’s d/d Potato & Duck starts with potatoes, potato starch, and duck, with lower protein and moderate-high fat.
It is worth considering for veterinarian-guided duck-and-potato feeding, not for high-meat duck-food expectations.
Plant booster present
01. NUTRIENT PROFILE
Key nutrients & mineral profile
Disclosed protein and fat
Protein 18.5%Fat 16%Other 65.5%Other includes moisture, ash and remaining components.
Position within the same processing type
Compare protein, fat and energy density in low, typical and high bands.
Protein positionLower
This food is on the lower side for crude protein among extruded foods.
Fat positionHigher
This food is on the higher side for crude fat among extruded foods.
Calorie densityTypical
This food sits around the typical calorie range among extruded foods. Check the feeding guide and weight trend alongside this comparison.
Key guaranteed nutrientsAs-fed
Calcium0.85%
Phosphorus0.58%
Crude fiberNot disclosed
Omega-30.9%
Omega-63.35%
Undisclosed values are not treated as zero.
02. INGREDIENT QUALITY & DISCLOSURE
Disclosed ingredients & ingredient grade
The analysis uses the registered ingredients. Complete-panel coverage is not verified, so an unlisted ingredient cannot be assumed absent.
Listed ingredients
Read the listed ingredients below. Complete-panel coverage is not verified here; do not infer that an unlisted ingredient is absent.
Ingredient gradeConservative
Ingredient #1 · PotatoesMid
Starchy TuberIngredient #2 · Potato StarchMid
Refined CarbIngredient #3 · DuckTop
Fresh MeatIngredient #2Mid
Potato Starch
Potato Starch is a refined carbohydrate source. It usually reads as a starch and energy source rather than a protein driver. It reads as an mid-tier carb source.
Ingredient #3Top
Duck
Duck is a named fresh meat ingredient. The animal source is clearly identified. It reads as an top-tier protein source.
Available ingredient listIn disclosed order
Potatoes — Neutral ingredientsPotato Starch — Neutral ingredientsDuck — Primary positive ingredientsPotato Protein — High-caution ingredientsSoybean Oil — Neutral ingredientsCoconut Oil — Neutral ingredientsPowdered Cellulose — Neutral ingredientsPork Liver Flavor — Support positive ingredientsDicalcium Phosphate — Neutral ingredientsLactic Acid — Neutral ingredientsFish Oil — Support positive ingredientsPotassium Chloride — Support positive ingredientsGlyceryl Monostearate — Neutral ingredientsCalcium Carbonate — Neutral ingredientsIodized Salt — Neutral ingredientsCholine Chloride — Support positive ingredientsvitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Calcium Pantothenate, Pyridoxine Hydrochloride, Vitamin A Supplement, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Folic Acid, Vitamin D3 Supplement) — Support positive ingredientsDL-Methionine — Neutral ingredientsTaurine — Support positive ingredientsMagnesium Oxide — Support positive ingredientsminerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite) — Support positive ingredientsMixed Tocopherols for freshness — Neutral ingredientsNatural Flavors — Support positive ingredientsBeta-Carotene. — Neutral ingredients
Primary positive ingredientsSupport positive ingredientsAlternative proteinNeutral ingredientsCaution ingredientsHigh-caution ingredients
Protein sourceIngredient guide
Processed plant protein after the top 3
Animal protein · Duck (#3)
Plant protein · Potato Protein (#4)
The protein number includes processed plant protein support.
Even when it appears later, the protein number is read more conservatively.
Included support ingredientsNutrient guide
Fish oilSkin and joint support ingredientTaurineHeart support ingredientOmega-3Skin and joint support ingredientOmega-6Skin and coat support ingredientEPA+DHASkin, joint, and heart support ingredientVitamin EAntioxidant and skin support ingredient
03. CHOOSING FOR YOUR DOG
What to consider before feeding
This is a prescription-diet candidate for allergy/skin care. Read purpose fit and veterinary guidance before treating it as a standard star-ranked food.
What works well in this food
- Omega-3, Omega-6, EPA+DHA, Vitamin E are disclosed, which helps compare skin-barrier and coat-support markers.
- Top ingredients do not show a prominent FDA-investigated non-hereditary DCM ingredient profile.
Check before feeding
- Refined carbohydrates lose fiber, vitamins, and minerals during processing, and mainly act as starch and energy sources. Because of that, our engine reads ingredient quality more conservatively than it would with whole grains.
- Processed plant protein appears after the top 3, so some protein support is still built into the label number.
- Public data is usable, but not at the highest-trust tier.
When this food fits your dog
Prescription purpose: allergy/skin care.
Consider it first when
- Comparing real nutrient numbers
- Shopping by disclosure breadth
- Choosing from public data first
Choose another food first when
- Meat intensity is the first shopping axis
- You want the strongest ingredient quality first
Plant-protein concentration remains the clearest trade-off here.
04. COMPARE FOODS
allergy/skin care prescription alternatives
Compare allergy/skin care prescription diets first. For therapeutic diets, clinical fit and veterinary direction matter more than a standard score.
05. MANUFACTURING & DISCLOSURE
Manufacturer background & public information
Hill's background
Founded in 1907 in the United States.
Disclosure confidence C1
There is a usable disclosure baseline, but the public record is still fairly thin.
Recall information
This brand has a confirmed recall history. The most recent public recall noted here was the 2019 vitamin D incident.
May 12, 2026