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Royal Canin Small Breed Adult Dry Dog Food vs Purina ONE + Plus Digestive Health

Buy Royal Canin Small Breed Adult for a small dog that needs portion control and a kibble sized for a tiny mouth. Buy Purina ONE + Plus for a sensitive-stomach dog of any size where real chicken as the first ingredient matters more than breed tailoring. Royal Canin has the stronger owner rating and a breed-specific formula with L-carnitine and EPA/DHA; Purina ONE counters with probiotics, a chicken-first recipe and a much wider size range. Both are dry chicken kibble for adult dogs, so the choice comes down to breed fit versus digestive focus.

  • Choose the Royal Canin Small Breed if your dog is a small breed adult and you want a kibble shaped for miniature jaws with weight-management and skin-and-coat support.
  • Choose the Purina ONE + Plus if your dog has a sensitive stomach and you want a chicken-first formula with probiotics that suits any breed size.

Prices

  • Royal Canin Small Breed Adult Dry Dog Food: $59.99 at Chewy.com (last seen Nov 9)
  • Purina ONE + Plus Digestive Health: $35.99 at freshbybrookshires.com (last seen Nov 9)
  • Difference: the Purina ONE + Plus Digestive Health is $24.00 cheaper than the Royal Canin Small Breed Adult Dry Dog Food at the latest prices (Nov 9)
Royal Canin
Royal Canin Small Breed Adult Dry Dog Food

Royal Canin Small Breed Adult Dry Dog Food

4.8(1,173 ratings)
$59.99at Chewy.comChecked 11 h ago
See all prices and details
Visit Chewy.com
Pros
  • Kibble sized for small mouths
  • L-carnitine supports healthy weight
  • EPA and DHA for skin and coat
  • High owner rating from a large sample
  • Enhanced palatability for picky eaters
Cons
  • Corn and rice lead the ingredient list
  • Chicken by-product meal rather than whole chicken
  • No grain-free option
  • Only for small breed adults
Purina
Purina ONE + Plus

Purina ONE + Plus Digestive Health

Purina ONE + Plus

4.6(545 ratings)
$35.99at freshbybrookshires.comChecked 22 h ago
See all prices and details
Visit freshbybrookshires.com
Pros
  • Real chicken is the first ingredient
  • Probiotics support digestive health
  • No artificial flavors or preservatives
  • Works for any breed size
  • Calcium and antioxidants for teeth and immunity
Cons
  • No weight-management or breed-specific formula
  • Lower owner rating and fewer ratings
  • Standard kibble may not suit tiny jaws
  • Contains grains

What separates them

Royal Canin Small Breed Adult Dry Dog FoodPurina ONE + Plus Digestive Health
Breed targetingFormulated specifically for small breed adults, including MaltipoosFormulated for all breed sizes
First ingredientCorn and brewers rice lead; chicken by-product meal and chicken fat followReal chicken is the first ingredient
Digestive supportMarketed for sensitive stomachs but no probiotics listedSmartBlend with added probiotics for digestive wellness
Weight managementL-carnitine helps metabolize fat and maintain ideal weightNo weight-management claim
Skin and coatEPA and DHA from fish oil support skin and a shiny coatOmega-6 fatty acids nourish skin and coat
Kibble designExclusive kibble adapted for miniature jawsStandard crunchy kibble with meaty morsels
Ingredient sourcingIncludes chicken by-product meal and grainsNatural with no artificial flavors or preservatives and no fillers
Owner rating4.8 out of 5 from 1,173 ratings4.6 out of 5 from 545 ratings

Price history

  • Royal Canin Small Breed Adult Dry Dog Food: lowest $26.49 on Nov 9 at Amazon.
  • Purina ONE + Plus Digestive Health: lowest $16.68 on Nov 9 at Chewy.com.

Prices at every store

Royal Canin Small Breed Adult Dry Dog Food

  • Petco.comNew

    In stock

    $59.99Free shippingChecked 11 h ago
    Visit Petco.com
  • Royal Canin USNew

    In stock

    $59.99Checked 11 h ago
    Visit Royal Canin US
  • Chewy.comNew

    In stock

    $59.99Free shippingChecked 11 h ago
    Visit Chewy.com
  • PetSmartNew

    In stock

    $59.99+ $6.99 shippingChecked 11 h ago
    Visit PetSmart

Also available at

  • Tractor Supply CompanyCheck price at Tractor Supply Company
  • Allivet Pet PharmacyCheck price at Allivet Pet Pharmacy
  • eBayCheck price at eBay

Store links may earn us a commission.

All 11 stores and price history →

Purina ONE + Plus Digestive Health

  • freshbybrookshires.comNew

    In stock

    $35.99Checked 22 h ago
    Visit freshbybrookshires.com
  • Chewy.comNew

    In stock

    $31.58+ $4.95 shippingChecked 22 h ago
    Visit Chewy.com
  • WalmartNew

    In stock

    $31.58+ $6.99 shippingChecked 22 h ago
    Visit Walmart
  • WalmartNew

    In stock

    $34.46+ $5.99 shippingChecked 10 h ago
    Visit Walmart

Also available at

  • PetCareRxCheck price at PetCareRx
  • Uber EatsCheck price at Uber Eats
  • Tractor Supply CoCheck price at Tractor Supply Co
All 5 stores and price history →

Specs compared

SpecRoyal Canin Small Breed Adult Dry Dog FoodPurina ONE + Plus Digestive Health
FlavorChickenChicken
FormDryDry
Life StageAdultAdult
Pet Food TypeDog FoodDog Food
Dietary HighlightsNo grain-free optionNatural
Health BenefitWeight Management, Ideal weight maintenance, St…Digestive support, Digestive Health
Pet TypeDogDog
Suitable Health ConcernWeight managementSensitive stomachs
Suitable ForSensitive stomachs, Sensitive skinSensitive stomachs
Breed SizeSmall BreedAll Sizes
Texture ConsistencyKibbleKibble
Main IngredientCorn, Brewers rice, Brown rice, Chicken by-prod…Chicken, Real chicken
Show all 20 specsShow fewer specs
SpecRoyal Canin Small Breed Adult Dry Dog FoodPurina ONE + Plus Digestive Health
Ingredient TypeFish oilChicken
Packaging StyleBagBag
Food SubtypeKibbleKibble
Food HighlightsExclusive kibble design adapted for miniature j…Added vitamins, Added minerals, Added nutrients
Suitable BreedMaltipoo—
Size—16.5 lbs
Multipack Quantity—1
Type—Dry

What reviewers say

Royal Canin Small Breed Adult Dry Dog Food

  • 4.8 / 51,173 ratings

Rated 4.8 out of 5 across more than 1,100 ratings, with owners mostly reporting clean bowls and good coats. Complaints center on the ingredient list and occasional digestive upset.

What people mention
  • PalatabilityPraisedOwners say picky small dogs finish the bowl where other brands were refused.
  • Kibble sizePraisedThe small, shaped pieces are easy for tiny and older dogs to chew.
  • IngredientsCriticisedReviewers question corn, brewers rice and chicken by-product meal as leading ingredients.
  • Coat and skinPraisedSeveral owners report shinier coats and less scratching on this formula.

Purina ONE + Plus Digestive Health

  • 4.6 / 5545 ratings

Owners rate this food highly, with most praise centered on how well their dogs with sensitive stomachs tolerate it and on shiny coats and firm stools. A minority report digestive upset or dogs refusing the kibble.

What people mention
  • Digestive tolerancePraisedOwners say their sensitive-stomach dogs do well on it, with firmer stools.
  • TasteMixedMany dogs eat it eagerly, but some owners say their dogs refuse it or leave the kibble.
  • CoatPraisedOwners report shinier coats and less shedding after switching.
  • Stomach upsetCriticised

Questions and answers

Which is better for a small dog with a sensitive stomach?
Purina ONE + Plus is the safer pick for digestion because it adds probiotics and leads with real chicken. Royal Canin is labeled for sensitive stomachs too, but its formula lists no probiotics and leads with corn and rice.
Is Royal Canin worth stepping up to over Purina ONE?
Step up if you have a small breed and want portion control and a kibble built for tiny jaws. The L-carnitine and EPA/DHA give it an edge on weight and coat that Purina ONE does not claim.
Which food lasts longer per bag?
Purina ONE + Plus comes in a 16.5 lb bag that suits medium and large dogs. Royal Canin is portioned for small breeds, so a small dog eats less per meal but the bag is smaller.
Which has better owner reviews?
Royal Canin scores 4.8 out of 5 from 1,173 ratings. Purina ONE scores 4.6 out of 5 from 545 ratings. Both are well rated, with Royal Canin slightly ahead on a larger sample.
Can a large dog eat Royal Canin Small Breed?
It is formulated for small breed adults, so it is not the right fit for a large dog. Purina ONE + Plus is made for all breed sizes.
Do either contain grain-free options?
Neither is grain-free. Royal Canin lists corn, brewers rice and brown rice, and Purina ONE is a chicken and rice formula.

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A few owners say their dogs had vomiting or loose stools on this formula.