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Veterinarian recommended science-backed diets for better nutrition. Learn more


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  • Authority® Hairball Control Indoor Cat Wet Food - 3 Oz, Pate, With-Grain

    Old Price $1.23
    $1.17
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  • Authority® Skin & Coat Dog Treat - 16 Oz.

    Old Price $16.99
    $16.14
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  • Authority® Everyday Health Indoor Kitten Cat Dry Food - Salmon & Rice, With-Grain

    Old Price $25.99
    $24.69
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  • Authority® Weight Management Dog Jerky Treat - Chicken, 16 Oz.

    Old Price $16.99
    $16.14
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  • Authority® Digestive Support Adult Wet Dog Food - 10 Oz.

    Old Price $2.39
    $2.27
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  • Authority Skin, Coat + Digestive Healthy Support Ground Entree Wet Adult Dog Food - Grain Free

    Old Price $1.29
    (7)

  • Authority® Hip & Joint Adult Wet Dog Food - 10 Oz.

    Old Price $2.39
    $2.27
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  • 2 Sizes

    Authority® Everyday Health Weight Management Adult Dry Dog Food - Chicken

    Old Price $17.99 - 59.99
    $17.09 - 56.99
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  • Authority® Digestive Support All Life Stage Wet Dog Food - 5.5 Oz.

    Old Price $1.99
    $1.89
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    (60)

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  • Authority® Sensitive Stomach & Skin Cat Dry Food - Ocean Whitefish & Rice, With-Grain

    Old Price $26.99
    $25.64
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    (48)

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  • Authority® Sensitive Systems & Digestion Dog Jerky Treat - Salmon, 16 Oz.

    Old Price $16.99
    $16.14
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    (63)

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  • Authority® Everyday Health Puppy Dry Dog Food - Beef

    Old Price $55.99
    $53.19
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    (15)

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  • Authority® Everyday Health Small Breed Adult Dry Dog Food - Chicken

    Old Price $44.99
    $42.74
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    (10)

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  • Authority® Gut Health All Life Stage Wet Dog Food - 10 Oz.

    Old Price $2.39
    $2.27
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    (57)

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  • 2 Sizes

    Authority® Healthy Aging Adult Dry Dog Food - Chicken

    Old Price $19.99 - 59.99
    $18.99 - 56.99
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    (59)

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  • Authority® Everyday Health Adult Wet Dog Food - 78 Oz.

    Old Price $11.99
    $11.39
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    (9)

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  • Authority® Everyday Health Puppy Dry Dog Food - Chicken

    Old Price $55.99
    $53.19
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    (9)

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  • Authority® Skin & Coat Dog Jerky Treat - Chicken, 16 Oz.

    Old Price $22.99
    $21.84
    5% off Auto Ship
    (52)

    Buy 2, Get 1 50% off all dog treats & chews excluding whimzees bulk

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  • Authority® Everyday Health Puppy Dry Dog Food - Chicken

    Old Price $17.99
    $17.09
    5% off Auto Ship
    (13)

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  • 3 Sizes

    Authority® Sensitive Stomach & Skin Cat Dry Food - Turkey & Rice, With-Grain

    Old Price $17.99 - 48.99
    $17.09 - 46.54
    5% off Auto Ship
    (81)

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  • 2 Sizes

    Authority® Hairball Control Cat Dry Food - Chicken & Rice, With-Grain

    Old Price $26.99 - 48.99
    $25.64 - 46.54
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    (53)

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  • 3 Sizes

    Authority® Everyday Health All Life Stage Dry Dog Food - Chicken

    Old Price $17.99 - 55.99
    $17.09 - 53.19
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    (118)

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  • Authority® Sensitive Stomach & Skin Adult Wet Dog Food - 5.5 Oz.

    Old Price $1.99
    $1.89
    5% off Auto Ship
    (52)

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  • 3 Sizes

    Authority® Everyday Health Large Breed Puppy Dry Dog Food - Chicken

    Old Price $17.99 - 55.99
    $17.09 - 53.19
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    (137)

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  • Authority® Everyday Health Small Breed Puppy Dry Dog Food - Chicken

    Old Price $17.99
    $17.09
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    (33)

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  • Authority® Sensitive Stomach & Skin Adult Wet Dog Food - 10 Oz.

    Old Price $2.39
    $2.27
    5% off Auto Ship
    (51)

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  • 4 Sizes

    Authority® Digestive Support Dog Dental Treat - Pumpkin & Apple

    Old Price $14.99
    $14.24
    5% off Auto Ship
    (243)

    Buy 2, Get 1 50% off all dog treats & chews excluding whimzees bulk

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  • Authority® Digestive Support All Life Stage Wet Dog Food - 15 Oz.

    Old Price $2.49
    $2.37
    5% off Auto Ship
    (90)

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  • Authority Hip & Joint Support Dog Food Topper - Freeze Dried, Chicken

    Old Price $9.99
    (51)

    Free Same-Day Delivery!
  • 2 Sizes

    Authority® Everyday Health Senior Dry Dog Food - Chicken

    Old Price $17.99 - 55.99
    $17.09 - 53.19
    5% off Auto Ship
    (44)

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  • 2 Sizes

    Authority® Weight Management Adult Dry Dog Food - Chicken

    Old Price $19.99 - 49.99
    $18.99 - 47.49
    5% off Auto Ship
    (75)

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  • Authority Skin & Coat Support Dog Food Topper - Freeze Dried, Chicken & Salmon

    Discounted Price $7.07 Old Price $9.99
    (52)

  • Authority® Weight Management Adult Wet Dog Food - 10 Oz.

    Old Price $2.39
    $2.27
    5% off Auto Ship
    (53)

    Save 35% On Your First Autoship Order!

    Free Same-Day Delivery!
  • 3 Sizes

    Authority® Gut Health Adult Dry Dog Food - Chicken

    Old Price $19.99 - 59.99
    $18.99 - 56.99
    5% off Auto Ship
    (71)

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  • 2 Flavors

    Authority® Digestive Support All Life Stage Wet Dog Food - 5 Oz.

    Old Price $1.99
    (92)

    Free Same-Day Delivery!
  • 2 Sizes

    Authority® Everyday Health High Performance All Life Stage Dry Dog Food - Turkey, Salmon & Duck

    Old Price $17.99 - 59.99
    $17.09 - 56.99
    5% off Auto Ship
    (165)

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Authority Dog and Cat Food

Give your pet balanced nutrition at every age and stage of life. Authority dog food and cat food is backed by decades of research and solution-focused formulas. Whether you prefer a grain-free formula, or if your pet does best on food with healthy grains, you'll find dry and canned food options with Authority. Our pet food contains omega fatty acids to help support healthy skin and coat, with no artificial colours, flavours, preservatives or chicken by product meal. With Authority dog food, cat food, pet treats and food toppers, PetSmart makes it easy to give them the nutrients they need - and they flavours they love.

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