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PRODUCT LINE

Hill's Science Diet

A line from Hill's

RECIPES REVIEWED
60
AVG PROTEIN, DM, KIBBLE
22.8%
AVG STARCH, KIBBLE
47%
FDA RECALLS
4
LINE REVIEW

The Hill's Science Diet Line, Reviewed

60 recipes, read label by label

Science Diet is built around chicken and grains. Chicken appears in 48 of the 54 kibbles, with egg in 10, lamb in 5 and fish in 4. Barley, brown rice and brewers rice are the usual grains near the top of the lists. Only one kibble and one wet food are grain free, and 35 kibbles contain peas or lentils. The recipes split by life stage (puppy, adult, 6+, 7+ and 11+), by kibble and breed size, and by purpose, with ranges sold for weight, sensitive stomachs, digestion and mobility.

Kibble protein runs from 15.5% to 28.8%, as fed, with a line average of 20.5% against a catalog kibble average of 26.9%. Estimated starch runs from 32.5% to 54% and averages 46.6%, against 37.4% for the catalog. Calories average 355 kcal per cup, compared with 395. The 6 wet foods average 4.5% protein, while the catalog wet average is 8.3%.

Owners after high meat content will find most of these recipes below the catalog on protein and above it on starch. Only the two large breed Perfect Weight kibbles come in under the catalog starch average. On the plus side, the same base formulas come in many kibble sizes, so it is easy to stay with one recipe as a dog ages or to match the bite size to the dog.

A GOOD FIT FOR
  • Owners who want grain-inclusive food with chicken as the main protein
  • Adult dogs on fewer calories, with Light kibbles at 243 kcal per cup
  • Owners matching kibble size to small, mini or large breed dogs
WORTH KNOWING
  • 35 of the 54 kibbles contain peas or lentils, and only one kibble and one wet food are grain free.
  • Kibble estimated starch spans 32.5% to 54%, and the 6+ and 7+ recipes sit at the high end, between 52.5% and 54%.
  • Many recipes repeat one formula in standard, Small Bites, Small Paws or Large Breed versions, so the label figures are often identical or nearly identical across names.

Hill's Science Diet Kibble 54 recipes

Recipe Protein Fat Starch Kcal / cup First ingredients
Hill’s Science Diet Adult Perfect Weight Large Breed Chicken Recipe 28.8% 11.2% 33.7% 289 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Puppy Sensitive Stomach & Skin Salmon & Brown Rice Recipe 25% 15.5% 39.5% 405 Salmon, Chicken Meal, Cracked Pearled Barley
Hill’s Science Diet Adult Sensitive Stomach & Skin Small Bites Chicken Recipe 25% 16.7% 40.8% 393 Chicken, Chicken Meal, Yellow Peas
Hill’s Science Diet Puppy Small Bites Chicken & Barley Recipe 25% 15% 41% 374 Chicken Meal, Whole Grain Wheat, Cracked Pearled Barley
Hill’s Science Diet Puppy Chicken & Brown Rice Recipe No Corn, Wheat, Soy 24.5% 15.5% 40% 434 Chicken, Brown Rice, Cracked Pearled Barley
Hill’s Science Diet Puppy Large Breed Lamb Meal & Brown Rice Recipe 24.5% 12% 44.5% 382 Lamb Meal, Brown Rice, Cracked Pearled Barley
Hill’s Science Diet Puppy Small Paws Chicken Meal, Barley & Brown Rice Recipe 24.5% 15.5% 41% 397 Chicken Meal, Whole Grain Wheat, Whole Grain Sorghum
Hill’s Science Diet Adult Perfect Weight Small & Mini Chicken & Brown Rice Recipe 24% 8% 39% 298 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult Perfect Weight Chicken Recipe 24% 8% 47% 298 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Light Small & Mini Chicken Recipe 24% 9% 38% 291 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Puppy Large Breed Chicken Meal & Oats Recipe 24% 11% 46% 363 Chicken Meal, Whole Grain Wheat, Whole Grain Oats
Hill’s Science Diet Adult Perfect Weight Small Bites Chicken Recipe 24% 8% 39% 316 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult Perfect Weight & Joint Support Large Breed Chicken & Brown Rice Recipe 23% 10.5% 32.5% 300 Chicken, Brown Rice, Chicken Meal
Hill’s Science Diet Puppy Chicken Meal & Barley Recipe 23% 15% 41% 374 Chicken, Brown Rice, Whole Grain Wheat
Hill’s Science Diet Adult 7+ Senior Vitality Small & Mini Chicken & Rice Recipe 22.4% 14.5% 45.9% 341 Chicken, Brewers Rice, Yellow Peas
Hill’s Science Diet Adult Sensitive Stomach & Skin Pollock Meal & Insect Recipe 22% 12% 46% 385 Pollock Meal, Cracked Pearled Barley, Dried Black Soldier Fly Larvae
Hill’s Science Diet Adult Sensitive Stomach & Skin Large Breed Chicken Recipe 21% 12% 47% 393 Chicken, Brewers Rice, Chicken Meal
Hill’s Science Diet Adult Sensitive Stomach & Skin Small & Mini Chicken Recipe 21% 12% 47% 380 Chicken, Brewers Rice, Chicken Meal
Hill’s Science Diet Adult Sensitive Stomach & Skin Chicken Recipe 21% 12% 47% 391 Chicken, Chicken Meal, Yellow Peas
Hill’s Science Diet Adult Perfect Digestion Chicken, Brown Rice & Whole Oats Recipe 20.6% 10.7% 48.7% 369 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Perfect Digestion Large Breed Chicken, Brown Rice & Whole Oats Recipe 20.6% 10.7% 48.7% 368 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult Sensitive Stomach & Skin Salmon & Brown Rice Recipe 20.5% 14% 46% 400 Salmon, Brown Rice, Brewers Rice
Hill’s Science Diet Adult Perfect Digestion Salmon, Whole Oats, and Brown Rice Recipe 20.5% 11% 48.5% 341 Salmon, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult Sensitive Stomach & Skin Grain-Free Chicken & Potato Recipe 20.5% 13% 46.5% 407 Chicken, Yellow Peas, Potatoes
Hill’s Science Diet Adult Sensitive Stomach & Skin Chicken & Barley Recipe 20% 13% 47% 391 Chicken, Chicken Meal, Yellow Peas
Hill’s Science Diet Adult Large Breed Light with Chicken Meal & Barley 20% 5.5% 44% 243 Chicken Meal, Cracked Pearled Barley, Whole Grain Wheat
Hill’s Science Diet Adult 1-6 Small Bites Chicken & Barley Recipe 20% 11.5% 48.5% 365 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Perfect Digestion Small Bites Chicken, Brown Rice & Whole Oats Recipe 20% 11% 49% 359 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult 1-6 Chicken & Barley Recipe 20% 11.5% 48.5% 365 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult Small Paws Light with Chicken Meal & Barley 20% 5.5% 44% 243 Chicken Meal, Cracked Pearled Barley, Whole Grain Wheat
Hill’s Science Diet Adult Small Paws Chicken Meal & Rice Recipe 20% 12.5% 47.5% 371 Chicken, Brown Rice, Whole Grain Wheat
Hill’s Science Diet Adult Large Breed Chicken & Barley Recipe 20% 11.5% 48.5% 365 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult Light Small Bites with Chicken Meal & Barley 20% 5.5% 44% 243 Chicken Meal, Cracked Pearled Barley, Whole Grain Wheat
Hill’s Science Diet Adult Light with Chicken Meal & Barley 20% 5.5% 44% 243 Chicken Meal, Cracked Pearled Barley, Whole Grain Wheat
Hill’s Science Diet Adult Oral Care Chicken, Rice & Barley Recipe 20% 11% 41% 272 Chicken, Brown Rice, Whole Grain Wheat
Hill’s Science Diet Adult 1-6 Small Bites Lamb Meal & Brown Rice Recipe 19.5% 12.5% 49% 370 Lamb Meal, Brown Rice, Brewers Rice
Hill’s Science Diet Adult 1-6 Lamb Meal & Brown Rice Recipe 19.5% 12.5% 49% 369 Lamb Meal, Brown Rice, Brewers Rice
Hill’s Science Diet Adult Small Paws Lamb Meal & Brown Rice Recipe 19.5% 12.5% 49% 369 Lamb meal, brown rice, brewers rice
Hill’s Science Diet Adult Large Breed Chicken & Brown Rice Recipe No Corn, Wheat, Soy 19.3% 12.5% 49.2% 390 Chicken, brown rice, brewers rice
Hill’s Science Diet Adult 1-6 Chicken & Brown Rice Recipe No Corn, Wheat, Soy 19.3% 12.5% 49.2% 390 Chicken, Brown Rice, Brewers Rice
Hill’s Science Diet Adult Small Bites No Corn, Wheat, Soy Chicken & Brown Rice Recipe 19% 12.5% 49.5% 389 Chicken, Brown Rice, Brewers Rice
Hill’s Science Diet Adult Large Breed Lamb Meal & Brown Rice Recipe 19% 12% 50% 369 Lamb Meal, Brown Rice, Brewers Rice
Hill’s Science Diet Adult 11+ Small Paws Chicken Meal, Barley & Brown Rice Recipe 18% 11% 51% 378 Chicken, Brown Rice, Brewers Rice
Hill’s Science Diet Adult Healthy Mobility Large Breed Chicken Meal, Brown Rice & Barley 18% 12% 49% 361 Chicken Meal, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult Healthy Mobility Small Bites Chicken Meal, Brown Rice & Barley 17.5% 11% 51.5% 361 Chicken Meal, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult 7+ Chicken & Brown Rice Recipe No Corn, Wheat, Soy 17% 10% 53% 381 Chicken, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult 6+ Large Breed Chicken & Brown Rice Recipe No Corn, Wheat, Soy 17% 10% 53% 381 Chicken, Brown Rice, Whole Grain Oats
Hill’s Science Diet Adult 7+ Perfect Digestion Chicken, Whole Oats & Brown Rice Recipe 17% 9% 54% 362 Chicken, Cracked Pearled Barley, Whole Grain Oats
Hill’s Science Diet Adult 7+ Perfect Digestion Small Bites Chicken, Whole Oats & Brown Rice Recipe 17% 9% 54% 352 Chicken, cracked pearled barley, whole grain oats
Hill’s Science Diet Adult 7+ Senior Vitality Chicken & Rice Recipe 17% 10.5% 53% 359 Chicken, Brown Rice, Cracked Pearled Barley
Hill’s Science Diet Adult 6+ Large Breed Chicken Meal, Barley & Rice Recipe 15.5% 10.5% 54% 352 Chicken Meal, Cracked Pearled Barley, Brewers Rice
Hill’s Science Diet Adult 7+ Small Bites Chicken Meal, Barley & Rice Recipe 15.5% 10.5% 54% 353 Chicken Meal, Cracked Pearled Barley, Brewers Rice
Hill’s Science Diet Adult 7+ Small Paws Chicken Meal, Barley & Brown Rice Recipe 15.5% 10% 52.5% 362 Chicken Meal, Cracked Pearled Barley, Brown Rice
Hill’s Science Diet Adult 7+ Chicken Meal, Barley & Rice Recipe 15.5% 10.5% 54% 352 Chicken Meal, Cracked Pearled Barley, Brewers Rice
Line average 20.5% 11.3% 46.6% 355

All figures as fed, from the guaranteed analysis on each label. Starch is our estimate, since no bag prints it. Highest in the line is marked in bold, lowest in italics.

Hill’s Science Diet Adult Sensitive Stomach & Skin Small Bites Chicken Recipe

25% protein · 16.7% fat · 40.8% starch · 393 kcal/cup · Adult

Most fat in the line

At 16.7%, this recipe has the most fat in the line, along with 25% protein and 40.8% estimated starch, which sets it apart from the other sensitive stomach chicken kibbles. Fiber is only 1.5%, and it suits adult dogs that prefer a small bite.

Full review of Hill’s Science Diet Adult Sensitive Stomach & Skin Small Bites Chicken Recipe

Hill’s Science Diet Adult Perfect Weight & Joint Support Large Breed Chicken & Brown Rice Recipe

23% protein · 10.5% fat · 32.5% starch · 300 kcal/cup · Adult

Least starch in the line

This recipe has the least estimated starch in the line at 32.5% and the most fiber at 18%, with powdered cellulose in its first five ingredients. It is made for large breed adults and sold for weight and joint support, at 300 kcal per cup.

Full review of Hill’s Science Diet Adult Perfect Weight & Joint Support Large Breed Chicken & Brown Rice Recipe

Hill’s Science Diet Adult Sensitive Stomach & Skin Pollock Meal & Insect Recipe

22% protein · 12% fat · 46% starch · 385 kcal/cup · Adult

This is the only recipe with dried black soldier fly larvae, which it pairs with pollock meal and no chicken. It is sold for sensitive stomachs and skin, lists 22% protein, 46% estimated starch, whole grain corn and sorghum, and suits owners who want a fish and insect protein base.

Full review of Hill’s Science Diet Adult Sensitive Stomach & Skin Pollock Meal & Insect Recipe

Hill’s Science Diet Adult Perfect Digestion Salmon, Whole Oats, and Brown Rice Recipe

20.5% protein · 11% fat · 48.5% starch · 341 kcal/cup · Adult

The only Perfect Digestion recipe built on salmon lists salmon, barley, brown rice and brewers rice first, and it also contains chicken and peas or lentils. It has 20.5% protein, 48.5% estimated starch and 341 kcal per cup, the fewest per cup among the adult Perfect Digestion kibbles.

Full review of Hill’s Science Diet Adult Perfect Digestion Salmon, Whole Oats, and Brown Rice Recipe

Hill’s Science Diet Adult Sensitive Stomach & Skin Grain-Free Chicken & Potato Recipe

20.5% protein · 13% fat · 46.5% starch · 407 kcal/cup · Adult

Only one grain-free

The only grain-free kibble in the line replaces grains with yellow peas, potatoes and potato starch, with chicken first. It lists 20.5% protein, 46.5% estimated starch and 407 kcal per cup, for owners who want a grain-free option within Science Diet.

Full review of Hill’s Science Diet Adult Sensitive Stomach & Skin Grain-Free Chicken & Potato Recipe

Hill’s Science Diet Adult Sensitive Stomach & Skin Chicken & Barley Recipe

20% protein · 13% fat · 47% starch · 391 kcal/cup · Adult

Sold for sensitive stomachs and skin, this recipe lists chicken, chicken meal, yellow peas and barley first, and it also contains egg. Its 20% protein is slightly below the 21% of the Sensitive Stomach & Skin Chicken Recipe, and it has the same 47% estimated starch and 391 kcal per cup.

Full review of Hill’s Science Diet Adult Sensitive Stomach & Skin Chicken & Barley Recipe

Hill’s Science Diet Adult 6+ Large Breed Chicken & Brown Rice Recipe No Corn, Wheat, Soy

17% protein · 10% fat · 53% starch · 381 kcal/cup · Adult

This 6+ large breed recipe is labeled no corn, wheat or soy, and whole grain oats and chicken meal follow chicken and brown rice. It lists 17% protein and 53% estimated starch, and our data marks it as discontinued.

We believe this recipe has been discontinued.

Full review of Hill’s Science Diet Adult 6+ Large Breed Chicken & Brown Rice Recipe No Corn, Wheat, Soy

Hill's Science Diet Wet food 6 recipes

Recipe Protein Fat Moisture Kcal / kg First ingredients
Hill’s Science Diet Puppy Savory Stew with Chicken & Vegetables 5.5% 3% 82% 901 Water, Chicken, Pork Liver
Hill’s Science Diet Adult Small & Mini Chicken & Barley Entrée 5.2% 3% 78% 996 Water, Chicken, Pork Liver
Hill’s Science Diet Adult Sensitive Stomach & Skin Chicken & Vegetable Entrée 5% 3% 78% 1,029 Chicken Broth, Chicken, Turkey
Hill’s Science Diet Adult Light 5% 1.7% 78% -- Water, Whole Grain Corn, Pork By-Products
Hill’s Science Diet Adult 7+ Senior Vitality Small & Mini Chicken & Vegetable Stew 3% 2% 85% -- Chicken Broth, Chicken, Pork Liver
Hill’s Science Diet Adult 7+ Healthy Cuisine Braised Beef, Carrots & Peas Stew 3% 1.8% 84% 727 Beef Broth, Red Bell Pepper, Beef
Line average 4.5% 2.4% 80.8% 913

All figures as fed, from the guaranteed analysis on each label. Wet food is mostly water, so compare it with other wet food only. Highest in the line is marked in bold, lowest in italics.

Hill’s Science Diet Adult Sensitive Stomach & Skin Chicken & Vegetable Entrée

5% protein · 3% fat · 373 kcal/can · Adult

Most calories in the lineOnly wet food here with turkeyOnly one grain-free

This is the only grain-free wet recipe and the only wet food with turkey. It is sold for sensitive stomachs and skin, lists potato starch and contains peas or lentils, and has the most calories among the wet foods at 373 kcal per can and 1,029 kcal per kg.

Full review of Hill’s Science Diet Adult Sensitive Stomach & Skin Chicken & Vegetable Entrée

Questions About Hill's Science Diet

Is Hill's Science Diet grain free?

Almost none of it is. The only grain-free recipes are the Adult Sensitive Stomach & Skin Grain-Free Chicken & Potato kibble and the wet Adult Sensitive Stomach & Skin Chicken & Vegetable Entrée. Every other recipe contains grains such as barley, brown rice, wheat or corn.

Which Science Diet recipe has the most protein?

Among the kibbles, Adult Perfect Weight Large Breed Chicken Recipe has the most at 28.8%. Among the wet foods, Puppy Savory Stew with Chicken & Vegetables leads at 5.5%.

Does Hill's Science Diet contain peas?

Many recipes do: 35 of the 54 kibbles and 4 of the 6 wet foods contain peas or lentils. Recipes without them include Adult Perfect Digestion Chicken, Brown Rice & Whole Oats, Adult 1-6 Lamb Meal & Brown Rice and Adult Sensitive Stomach & Skin Salmon & Brown Rice.

All recipes

60 foods matched · newest first
DEEP DIVE

Inside The Hill's Science Diet Range

Across 60 recipes we review

Protein runs lower than the average kibble we review (22.8% vs 30.1% on a dry matter basis).

Starch is higher than average, at 47% of the food as fed.

95% of recipes lead with a meat, fish or egg ingredient (89% across the site).

3% of recipes are grain-free.

NUTRITION

How The Range Measures Up

this range, lowest to highest its average average of all 3,205 foods we review

Protein, dry matter 23% 17% to 32%
15%site avg 30%50%
Fat, dry matter 13% 6% to 19%
5%site avg 18%30%
Starch, as fed 47% 33% to 54%
10%site avg 37%60%
Kcal per cup 355 243 to 434
250site avg 395600

Starch is our estimate from the guaranteed analysis, since no manufacturer prints it. How we work it out

INGREDIENTS

What Goes In The Bowl

Chicken 88% 56%
Egg 22% 31%
Lamb 8% 14%
Pork 8% 11%
Fish 7% 34%
Beef 3% 20%
Turkey 2% 20%

Share of recipes that list each animal protein as an ingredient, not counting oils, fats or flavorings. Useful if your dog has a food sensitivity.

Ingredients Some Owners Avoid

By-products 3% 13%
Artificial colors 0% 1%
Chemical preservatives 7% 9%
Corn 73% 15%
Wheat 45% 13%
Soy 80% 10%

These are not unsafe. They are listed because readers ask about them.

LIFE STAGE
  • Adult46
  • Puppy8
  • Senior6
BREED SIZE
  • All Breeds56
  • Small Breed19
  • Large Breed14
SPECIAL DIETS
  • Grain-free (no wheat, corn, rice, barley or oats)2
RECALL HISTORY // HILL'S

4 FDA Recalls On Record

MAY 20, 2019
MAR 20, 2019
JAN 31, 2019
JUN 2, 2014
POTENTIAL SALMONELLA

Science Diet Adult Small & Toy Breed dry dog food (62 bags)

See the recall log

NO LONGER SOLD

1 Discontinued Recipe

We keep reviews of discontinued recipes online, each with suggested replacements, because bags stay on shelves and in pantries for months.

LINE VS LINE

Science Diet Compared With Other Hill's Lines

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