Nature’s Domain is a Kirkland Signature line of seven recipes, six kibbles and one wet stew, built mostly around grain-free formulas with a named meat or fish listed first. Five of the six kibbles and the wet stew are grain free, and those same six recipes use peas or lentils. Turkey and Ancient Grains is the one recipe with grain (grain sorghum, cracked pearled barley and brown rice) and the one without peas or lentils.
Among the kibbles, protein runs from 24% to 27% and estimated starch from 37.5% to 42%, all as fed. Fat stays between 14% and 15%, and calories range from 398 to 414 kcal per cup. Proteins include salmon, turkey, beef and chicken, with egg in three kibbles. Against the catalog kibble average, the line averages 25.7% protein versus 26.9%, 39.5% starch versus 37.4%, and 408 kcal per cup versus 395.
The trade-off is a line that runs slightly lower in protein and slightly higher in starch and calories than typical kibble. The kibbles sit close together on fat and calories, so the real choices are protein source and grain. The wet stew, at 8% protein, sits near the 8.3% wet catalog average.
| Recipe | Protein | Fat | Starch | Kcal / cup | First ingredients |
|---|---|---|---|---|---|
| Salmon and Sweet Potato Formula Grain-Free | 27% | 15% | 38% | 406 | Salmon, salmon meal, sweet potatoes |
| Turkey and Ancient Grains | 27% | 15% | 39% | 414 | Turkey, turkey meal, grain sorghum |
| Puppy Formula Chicken & Pea Grain-Free | 27% | 15% | 37.5% | 414 | Chicken, chicken meal, peas |
| Small Breed Salmon & Lentil Grain-Free | 25% | 15% | 39% | 413 | Salmon, salmon meal, lentils |
| Turkey and Sweet Potato Grain-Free | 24% | 14% | 42% | 404 | Turkey, turkey meal, sweet potatoes |
| Beef and Sweet Potato Grain-Free | 24% | 14% | 41.5% | 398 | Beef, beef meal, sweet potatoes |
| Line average | 25.7% | 14.7% | 39.5% | 408 |
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.
27% protein · 15% fat · 38% starch · 406 kcal/cup · All Life Stages
This is the salmon kibble sold for all breeds, and it ties for the line’s top protein at 27% with 38% estimated starch. Sweet potatoes, potatoes and peas follow salmon and salmon meal, which suits owners who want a fish recipe without a small breed label.
Full review of Salmon and Sweet Potato Formula Grain-Free27% protein · 15% fat · 39% starch · 414 kcal/cup · All Life Stages
The only recipe in the line with grain and the only one without peas or lentils, it follows turkey with grain sorghum, cracked pearled barley and brown rice. At 27% protein, 3% fiber and 414 kcal per cup, it suits owners who prefer grain-inclusive kibble.
Full review of Turkey and Ancient Grains27% protein · 15% fat · 37.5% starch · 414 kcal/cup · Puppy
The only recipe made for puppies and the only kibble with chicken, it has the least estimated starch in the line at 37.5% and ties for the most protein at 27%. Peas, garbanzo beans and lentils follow chicken and chicken meal, suiting puppy owners comfortable with legumes.
Full review of Puppy Formula Chicken & Pea Grain-Free25% protein · 15% fat · 39% starch · 413 kcal/cup · All Life Stages
The line’s only recipe made for small breeds, built on salmon, salmon meal, lentils, chickpeas and peas, with the highest fiber in the line at 5%. It suits owners of small dogs who want a fish-first grain-free kibble at 25% protein and 413 kcal per cup.
Full review of Small Breed Salmon & Lentil Grain-Free24% protein · 14% fat · 42% starch · 404 kcal/cup · All Life Stages
Turkey is the only animal protein listed, and this recipe carries the most estimated starch in the line at 42%, with protein at 24%. Sweet potatoes, potatoes and peas follow the turkey, so it suits owners who want a grain-free poultry kibble without chicken or egg.
Full review of Turkey and Sweet Potato Grain-Free24% protein · 14% fat · 41.5% starch · 398 kcal/cup · All Life Stages
The only kibble in the line with beef, it lists beef, beef meal, sweet potatoes, lentils and garbanzo beans, plus egg. It has the fewest calories in the line at 398 kcal per cup, with 24% protein and 41.5% estimated starch, suiting dogs that prefer beef.
Full review of Beef and Sweet Potato Grain-Free| Recipe | Protein | Fat | Moisture | Kcal / kg | First ingredients |
|---|---|---|---|---|---|
| Nature’s Domain, Turkey & Pea Stew, 24-count Grain-Free | 8% | 5% | 82% | -- | Turkey, turkey broth, vegetable broth |
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.
8% protein · 5% fat
The line’s only wet food is a turkey stew made with turkey broth, vegetable broth and dried egg product, at 8% protein, 5% fat and 82% moisture. Its protein sits near the 8.3% wet catalog average, and it suits owners who want a grain-free wet option.
Full review of Nature’s Domain, Turkey & Pea Stew, 24-count Grain-FreeMostly. Five of the six kibbles and the Turkey & Pea Stew are grain free. Turkey and Ancient Grains is the exception, with grain sorghum, cracked pearled barley and brown rice.
Three kibbles tie at 27% protein: Salmon and Sweet Potato Formula, Turkey and Ancient Grains, and Puppy Formula Chicken & Pea. Turkey and Sweet Potato and Beef and Sweet Potato are lowest at 24%.
Six of the seven recipes contain peas or lentils, including the Turkey & Pea Stew. Turkey and Ancient Grains is the only recipe in the line without them.
Protein is close to the average kibble we review (28.5% on a dry matter basis).
Starch is higher than average, at 40% of the food as fed.
100% of recipes lead with a meat, fish or egg ingredient (89% across the site).
86% of recipes are grain-free.
this range, lowest to highest its average average of all 3,205 foods we review
Starch is our estimate from the guaranteed analysis, since no manufacturer prints it. How we work it out
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.
These are not unsafe. They are listed because readers ask about them.
MOST PROTEIN
Kirkland Signature Nature’s Domain Salmon and Sweet Potato Formula Grain-Free Dry Dog Food
30.0% dry matter
LEAST STARCH
Kirkland Signature Nature’s Domain Puppy Formula Chicken & Pea Grain-Free Dry Dog Food
38% as fed
FEWEST CALORIES
Kirkland Signature Nature’s Domain Beef and Sweet Potato Grain-Free Dry Dog Food
398 kcal per cup
Expansion to batches of nine brands of dry dog and cat food made at Gaston, SC plant Dec 9 2011 - Apr 7 2012
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