Label analysisGrade CListed ingredientsKibble (Extruded)

Hill's

Hill's Gastrointestinal Biome Dry Dog Food | Hill's Prescription Diet

Choosing for your dog
Editor ingredient insight

Hills Gastrointestinal Biome leads with chicken, barley, and brewers rice in a GI prescription-style formula.

It is worth considering for veterinarian-guided digestive management, not as a general palatability or grain-avoidance pick.

Fresh-meat leadPlant booster present
Illustration of chicken beside a dog-food bowl
Primary protein ingredient · Chicken

01. NUTRIENT PROFILE

Key nutrients & mineral profile

As-fed basis
Disclosed protein and fat
Protein 21%Fat 12.6%Other 66.4%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 positionTypical

This food sits around the typical crude fat range among extruded foods.

Calorie densityLower

This food is on the lower side for calorie density among extruded foods. That alone does not make it a weight-management diet; check portion guidance, fat, and fiber together.

Key guaranteed nutrientsAs-fed
Calcium1.16%
Phosphorus0.67%
Crude fiberNot disclosed
Omega-3Not disclosed
Omega-63.48%

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.

Chicken ingredient illustration
Primary protein ingredient · Chicken
C3/6Ingredient gradeMixed
Ingredient #1 · ChickenTop
Fresh Meat
Ingredient #2 · Cracked Pearled BarleyMid
Semi-Refined Grain
Ingredient #3 · Brewers RiceLower
Refined Carb
Ingredient #1Top

Chicken

Chicken is a named fresh meat ingredient. The animal source is clearly identified. It reads as an top-tier protein source.

Ingredient #2Mid

Cracked Pearled Barley

Cracked Pearled Barley is disclosed, but its role is not explicit enough to count as a strong quality signal. It reads as an mid-tier carb source.

Ingredient #3Lower

Brewers Rice

Brewers Rice is a refined carbohydrate source. It usually reads as a starch and energy source rather than a protein driver. It reads as an lower-tier carb source.

Available ingredient listIn disclosed order
Chicken — Primary positive ingredientsCracked Pearled Barley — Neutral ingredientsBrewers Rice — Neutral ingredientsCorn Protein Meal — High-caution ingredientsWhole Grain Corn — Neutral ingredientsWhole Grain Oats — Neutral ingredientsGround Pecan Shells — Neutral ingredientsChicken Liver Flavor — Support positive ingredientsChicken Fat — Neutral ingredientsPowdered Cellulose — Neutral ingredientsFlaxseed — Neutral ingredientsDried Beet Pulp — Support positive ingredientsPork Liver Flavor — Support positive ingredientsDried Citrus Pulp — Neutral ingredientsSoybean Oil — Neutral ingredientsFish Oil — Support positive ingredientsCalcium Carbonate — Neutral ingredientsDicalcium Phosphate — Neutral ingredientsLactic Acid — Neutral ingredientsPotassium Chloride — Support positive ingredientsPumpkin — Neutral ingredientsPressed Cranberries — Neutral ingredientsL-Lysine — Neutral ingredientsIodized Salt — Neutral ingredientsCholine Chloride — Support positive ingredientsvitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Thiamine Mononitrate, Niacin Supplement, Calcium Pantothenate, Vitamin A Supplement, Riboflavin Supplement, Pyridoxine Hydrochloride, Vitamin B12 Supplement, Biotin, Folic Acid, Vitamin D3 Supplement) — Support positive ingredientsGinger — Neutral ingredientsPsyllium Seed Husk — Support positive ingredientsL-Threonine — Neutral ingredientsTaurine — Support positive ingredientsL-Tryptophan — Neutral 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 · Chicken (#1)

Plant protein · Corn Protein Meal (#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 ingredientCranberryUrinary support ingredientPsyllium huskGut support ingredientTaurineHeart support ingredientOmega-6Skin and coat support ingredientVitamin EAntioxidant and skin support ingredient

03. CHOOSING FOR YOUR DOG

What to consider before feeding

This is a prescription-diet candidate for gastrointestinal care. Read purpose fit and veterinary guidance before treating it as a standard star-ranked food.

What works well in this food

  • Crude Protein, Crude Fat, Calories are disclosed, which helps review fat load and fiber design for gastrointestinal care.
  • The first ingredient is a species-named fresh meat.
  • Calorie density is on the lower side.
  • 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.
  • Calcium:Phosphorus Ratio (1.73:1, reference 1.1~1.6:1): Within an acceptable range, but not the optimal one.

When this food fits your dog

Prescription purpose: gastrointestinal care.

Consider it first when

  • Public-data-first comparison
  • Baseline shortlist building
  • Conservative first-pass screening

Choose another food first when

  • You want a stronger ingredient-quality story first
  • You need dog-specific fit instead of public-review screening

Plant-protein concentration remains the clearest trade-off here.

04. COMPARE FOODS

gastrointestinal care prescription alternatives

Compare gastrointestinal 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

Final word

Interpret this for my dog

The food-first public score is only the starting point. Once your dog’s activity, weight goals, life stage, and health status are applied, the recommendation order and interpretation can change.

There is enough here to keep the food in comparison, but not enough to stop comparing yet.