HILL'S PRESCRIPTION DIET · REVIEW
Hill's Prescription Diet Food Sensitivities z/d Original
Hill's Prescription Diet Food Sensitivities z/d Original scores 1.2/5 for ingredient quality — a dry food cat food with 9.2% protein targeting adult cats.
Poor
MiauMiau AI score · 1.2/5
AI ANALYSIS
What MiauMiau's AI actually sees
The first ingredients are unnamed 'meat and animal by-products' and 'vegetable by-products', making it impossible to assess true quality, and the primary carbohydrate is refined corn starch. The label provides no moisture content, rendering dry matter protein and carbohydrate calculations impossible, which is a critical transparency failure for a prescription diet.
According to MiauMiau's analysis of over 5,000+ dry food products, Hill's Prescription Diet Food Sensitivities z/d Original scores below the dry food average.
Analyzed by MiauMiau's Nutritional AI · June 2026
This analysis is generated from ingredient and compositional data. It is not veterinary advice. Always consult your veterinarian for health decisions.
Score breakdown
HOW IT COMPARES
Hill's Prescription Diet Food Sensitivities z/d Original vs. the category
Compared to the average dry food across 5,000+ products in our database.
Category avg: 2.7/5
Scores 1.5 points below the average dry food
OUR ASSESSMENT
What we like vs. what to watch
What we like
- Grain-free formula
- Nutritionally complete — suitable as a sole diet
What to watch
- Ingredient quality is below average
- Protein content falls short of optimal levels
- Contains notable filler ingredients
- Contains some controversial additives
- Uses vague 'derivatives' instead of named ingredients
WHO IT'S FOR
Is this right for your cat?
Best for
INGREDIENTS
What's actually in the bag
Top ingredients
- 01Meat and animal by-products
- 02vegetable by-products
- 03minerals
- 04oils and fats
- 05fruits
Ingredients are listed by weight. The first ingredients make up the majority of the formula.
Concerns
- Uses unnamed animal derivatives instead of specific protein sources
NUTRITION
The numbers
Guaranteed analysis
FULL LABEL
Every ingredient
Meat and animal by-products, vegetable by-products, minerals, oils and fats, fruits, seeds. Protein source: chicken liver hydrolysate. Carbohydrate source: corn starch.
FAQ
Questions worth answering
Is Hill's Prescription Diet Food Sensitivities z/d Original good for cats?
According to MiauMiau's AI analysis, Hill's Prescription Diet Food Sensitivities z/d Original is a below-average dry food with a quality score of 1.2 out of 5. The first ingredients are unnamed 'meat and animal by-products' and 'vegetable by-products', making it impossible to assess true quality, and the primary carbohydrate is refined corn starch. The label provides no moisture content, rendering dry matter protein and carbohydrate calculations impossible, which is a critical transparency failure for a prescription diet.
What is the protein content of Hill's Prescription Diet Food Sensitivities z/d Original?
Hill's Prescription Diet Food Sensitivities z/d Original contains 9.2% protein as listed on the label.
Is Hill's Prescription Diet Food Sensitivities z/d Original grain-free?
Yes, Hill's Prescription Diet Food Sensitivities z/d Original is grain-free. It does not contain wheat, corn, rice, or other grain ingredients. This can be beneficial for cats with grain sensitivities, though most healthy cats tolerate grains without issues.
How does Hill's Prescription Diet Food Sensitivities z/d Original compare to other dry food?
According to MiauMiau's database of over 5,000+ cat food products, Hill's Prescription Diet Food Sensitivities z/d Original scores 1.5 points below the average dry food quality score of 2.7. MiauMiau's AI evaluates ingredient quality, protein adequacy, filler content, and additive safety to generate each score.
Is Hill's Prescription Diet Food Sensitivities z/d Original suitable for kittens or senior cats?
Hill's Prescription Diet Food Sensitivities z/d Original is formulated for adult cats. If you have a kitten or a senior cat, look for formulas specifically designed for their life stage.
What are the main ingredients in Hill's Prescription Diet Food Sensitivities z/d Original?
The top 5 ingredients in Hill's Prescription Diet Food Sensitivities z/d Original are: Meat and animal by-products, vegetable by-products, minerals, oils and fats, fruits. The primary ingredient is Meat and animal by-products. The remaining top ingredients are vegetable by-products, minerals, oils and fats, fruits. Ingredient order indicates proportion by weight, so the first ingredients make up the bulk of the formula.
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