Hill's Science Diet
Strong for prescription and therapeutic needs, and that's genuinely where it belongs. For everyday feeding it's poor value: corn- and by-product-led panels at a vet-clinic price, with named-meat premium brands offering a better ingredient panel for the money. Don't default to it for a healthy dog without checking the cost per kg.
A science-led brand with a deep, well-researched prescription range — clinically rigorous and consistent. Outside the therapeutic lines, though, the value is below average for the price: the standard panels lean on corn, grain and by-product meals rather than named single-source protein, and you carry a vet-clinic price premium for the brand and its shelf presence. The prescription range is the reason to buy it, not the everyday food.
Reviewed by the PetReviews editorial team
Independent scoring · Updated June 2026 · Not veterinary advice
Overall score
Weighted across six areas · /100
- 0
- Value
- 0
- Ingredients
- 0
- Transparency
Our verdict
Strong for prescription and therapeutic needs, and that's genuinely where it belongs. For everyday feeding it's poor value: corn- and by-product-led panels at a vet-clinic price, with named-meat premium brands offering a better ingredient panel for the money. Don't default to it for a healthy dog without checking the cost per kg.
How Hill's Science Diet scores
Every brand runs through the same 100-point model. Each area below is weighted by importance — price and ingredients carry the most.
Ownership & transparency
- Ownership
- Hill's Pet Nutrition (Colgate-Palmolive)
- Country of manufacture
- USA / Multiple
- Retailer relationship
- Independent — widely stocked across retailers
Pros & cons
What works
- Strong veterinary and prescription range
- Rigorous, consistent nutrition
- Backed by clinical research
- Widely available
Watch-outs
- Below-average value for the price per kg
- Standard panels lean on corn, grain and by-product meals over named protein
- Vet-clinic price premium attached to the brand
Who it's for
Best for
- Vet-prescribed therapeutic diets
- Genuine condition-specific feeding
- Senior and weight-management cases under vet guidance
Look elsewhere if
- You want named-meat ingredients and value on everyday feeding
Key Hill's Science Diet products we rate
Hill's Science Diet Adult Chicken 12kg
Est. cost / day
$2.70
~15kg adult dog
Price / kg
$11.58/kg
12kg bag
First ingredient
Chicken
Protein
22%
Reliable and vet-trusted; check price per kg against premium brands before defaulting to it.
Hill's Science Diet Sensitive Stomach 12kg
Est. cost / day
$2.90
~15kg adult dog
Price / kg
$12.42/kg
12kg bag
First ingredient
Chicken
Protein
22%
A solid non-prescription sensitive-stomach option; Prime100 is our value-led alternative.
Hill's Science Diet Sensitive Stomach 12kg
A solid non-prescription sensitive-stomach option; Prime100 is our value-led alternative.
$12.42/kgrating 78/100
Hill's Science Diet Adult Chicken 12kg
Lower-scoring on our value-and-quality blend at $11.58/kg. Compare carefully on cost per day before choosing it over the rest of the range.
$11.58/kgrating 77/100
Price across retailers
Illustrative everyday pricing for Hill's Science Diet key products. The cheapest retailer can shift with sales, member and subscription pricing — always check price per kg before you buy.
Lowest everyday price in this table. Prices are illustrative.
Retailers that stock Hill's Science Diet
Alternatives to Hill's Science Diet
Royal Canin
Super-premium
Worth it for genuine therapeutic and prescription needs, where the research is unmatched. For everyday feeding it's hard to justify: by-product- and grain-led panels at a top-tier price per kg, where much of what you're buying is the vet-clinic positioning. Compare cost per day against named-meat premium rivals before defaulting to it.
Prime100
Premium
A capable single-protein option for elimination diets, and the labels are honest. But the rolls especially carry a steep price per kg for what is a deliberately simple recipe, and the range spread across formats muddies value — price the dry against the rolls per serve before you settle on one.
Black Hawk
Premium
Fine on a discounted big bag if you choose a named-meat-first recipe, but don't assume the whole range is equal — the cheaper lines pad the panel with grain and rice, and a chunk of the price is reach and marketing rather than ingredients. Compare the specific formula on cost per kg against SavourLife and Ivory Coat.
Final verdict on Hill's Science Diet
Strong for prescription and therapeutic needs, and that's genuinely where it belongs. For everyday feeding it's poor value: corn- and by-product-led panels at a vet-clinic price, with named-meat premium brands offering a better ingredient panel for the money. Don't default to it for a healthy dog without checking the cost per kg.
Hill's Science Diet FAQs
Hill's Science Diet scores 66/100 overall (Average) on our 100-point model, with a value score of 52/100. Strong for prescription and therapeutic needs, and that's genuinely where it belongs. For everyday feeding it's poor value: corn- and by-product-led panels at a vet-clinic price, with named-meat premium brands offering a better ingredient panel for the money. Don't default to it for a healthy dog without checking the cost per kg.
Across the retailers we track, Pet Circle currently shows the lowest everyday price on a key Hill's Science Diet product. Prices are illustrative and change often, so compare price per kg and member or subscription pricing before you buy. See our full price comparison above.
Worth comparing carefully against Royal Canin, Prime100, Black Hawk. Each sits in a similar tier; check cost per day and ingredient quality for your dog's size and needs.
Within the range we rate, Hill's Science Diet Sensitive Stomach 12kg scores best on our value-and-quality blend. Match the bag size to your dog's daily serve so you are comparing cost per day, not just sticker price. This is general information, not veterinary advice.