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Hills Prescription Diet Gastrointestinal Biome Mini – —

Hill's Prescription Diet

Hill's Prescription Diet Hills Prescription Diet Gastrointestinal Biome Mini review

We don't put a score on this food. It is a veterinary diet, formulated for a diagnosed condition and meant to be fed on a vet's advice. Your vet has seen your dog and we have not, so a number from us could only pull you towards their advice or away from it, and neither of those is ours to do. What follows is what the label declares, what the analysis works out at, and where to buy it, with no judgement attached to any of it.

Gastrointestinal Biome Mini is a chicken-led digestive care kibble in a small pellet. Hill's offers it in the Prescription Diet range for smaller dogs whose gut is being managed under veterinary supervision.

DryAdult
Where to buy: coming soon
Live retailer pricing is coming soon. Once we have prices from UK retailers, the best price, cost per day and where to buy will appear here.

The Details

Dog fit
Food type

Dry

Life stage

Adult

Breed size

Small

Main protein

Chicken

What's in it

Ingredients, as declared: Cereals, meat and animal derivatives (chicken 9%), derivatives of vegetable origin, oils and fats, vegetable protein extracts, fruit, seeds, minerals, vegetables. Highly digestible ingredients: Chicken and turkey meal, brewers' rice, maize, maize gluten meal, animal fat, vegetable oil.

Named ingredients

Cereals, meat and animal derivatives (chicken 9%), derivatives of vegetable origin, oils and fats, vegetable protein extracts, fruit, seeds, minerals, vegetables. Highly digestible ingredients: Chicken and turkey meal, brewers' rice, maize, maize gluten meal, animal fat, vegetable oil.

Nutritional additives

Nutritional additives: 3b103 (Iron) 84.5mg, 3b202 (Iodine) 2.1mg, 3b405 (Copper) 8.3mg, 3b502 (Manganese) 8.7mg, 3b603 (Zinc) 148mg, 3b801 (Selenium) 0.2mg, with natural antioxidant.

What's on the label

Cereals head the ingredient statement, and the meat behind them is declared as meat and animal derivatives with chicken picked out inside it at 9%. Behind them the label lists fruit, seeds, minerals and vegetables, along with vegetable protein extracts, oils and fats and derivatives of vegetable origin. Almost none of those front entries names an actual ingredient. They are headings.

The naming happens in a second list, which Hill's prints as its highly digestible ingredients: chicken and turkey meal, brewers' rice, maize, maize gluten meal, animal fat and vegetable oil. Turkey therefore sits in the recipe next to chicken. Maize turns up twice over, once on its own and once as gluten meal, and that second entry lifts some of the protein figure.

Crude fibre is declared at 6.9%, working out at 7.6% once the moisture is taken off. The printed list does not itemise a named prebiotic blend, and an owner tracking how a gut diet is put together will find no fibre breakdown on the bag.

On the analysis, protein converts to 23.5% of dry matter and fat to 14.5%, with the carbohydrate estimate landing at 47.9% and energy at 343 kcal per 100g. A kibble assembled around digestibility rather than around a big meat percentage will read this way, and that is the design the maker has chosen rather than something slipping. Calcium comes out at 1.05% of dry matter.

Every added mineral carries a dose beside it: zinc at 148mg, iron at 84.5mg, copper at 8.3mg, manganese at 8.7mg, iodine at 2.1mg and selenium at 0.2mg. A natural antioxidant closes the panel. The bag's own guide starts at 35 grams a day for a 1kg dog, gives 185 grams beside the 10kg line and reaches 615 grams at 50kg. What your dog should actually be given is a number to take from the vet who prescribed it.

Price and where to buy

Two bag sizes are listed for it, 1kg and 3kg.

Nutritional analysis

Declared analysis

Energy
343 kcal/100g
Protein

21.4%

Fat

13.2%

Fibre

6.9%

Ash

5.9%

Moisture

9%

Dry weight

Protein

23.5%

Fat

14.5%

Fibre

7.6%

Ash

6.5%

Carbs

47.9%

As-fed composition

Estimated breakdown of the finished product by ingredient category, from the declared ingredient list and ingoing weights. These are estimates, not measurements.

Meat

26.2%

Carbs

63.2%

Veg

2.7%

Oils

5.5%

Other

2.4%

Pricing & size
Pack size
3 kg, 1 kg
Retailer pricing
Coming soon

Live retailer pricing is not yet available for this food. Prices, cost per day and where to buy will appear here once retailer data is live.

Ingredients and nutrition are taken from manufacturer data. Retailer pricing is not yet live for this food.

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Reviewed by Off the Leash Editorial

Last updated 24 August 2026