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Home / Pets / Dog Food / Science Diet Adult Chicken & Barley
8.6 Tested Aug 25, 2026 by Team RankingRight

Science Diet Adult Chicken & Barley (Dry, 35 lb bag) review 2026

The brand vets recommend most, with feeding-trial substantiation, its own research institute and a prescription range for when a dog gets ill

PriceFrom $79 · checked Sep 11, 2026
Cost per 1,000 kcal1.42 $
Protein20 %

Is the Science Diet Adult Chicken & Barley Worth It?

Most recommended by vets. Hill's is the safest, most researched food here and the easiest to stay with if your dog later needs a therapeutic diet. The protein level is the one number to check against your dog's workload.

Science Diet Adult Chicken & Barley Pros & Cons

Pros
  • Feeding-trial substantiated with decades of published research behind it
  • Prescription diets let a vet move your dog onto a therapeutic food without switching brands
  • Owns its plants; veterinary nutritionists on staff
  • Consistent quality; our panel had no digestive upsets
Cons
  • 20% protein is the lowest here — fine for a couch dog, thin for a working one
  • $1.42 per 1,000 kcal, above Pro Plan
  • A 2019 vitamin D recall affected canned products

Science Diet Adult Chicken & Barley at a Glance

8.6 Editor Score
Nutrition & AAFCO statementWhether the food meets an AAFCO profile and how it was established — a feeding trial counts for more than formulation alone — plus protein, fat and the guaranteed analysis against life-stage needs.
29/30
Ingredients & sourcingNamed meat sources, how far down the list the first grain or filler sits, and what the brand will tell you about where it is made.
16/20
Safety recordFDA recall history, whether the brand owns its plants, and whether it employs a full-time veterinary nutritionist.
18/20
AcceptanceHow readily our twelve-dog panel ate it, and stool quality over two weeks.
8/10
ValueCost per 1,000 kcal — the only fair way to compare a dense kibble with a fresh food.
15/20
Reader ratingNo reader ratings yet — not part of the score
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Own one? Rate it:

Rubric v1: Nutrition & AAFCO statement 30 · Ingredients & sourcing 20 · Safety record 20 · Acceptance 10 · Value 20. Score = Σ ÷ 10, locked Sep 11, 2026. How we rank.

Where to buy — prices checked Sep 11, 2026

Amazon — $79

Best priceSee Price

Science Diet Adult Chicken & Barley specifications

TypeDry kibble
Cost per 1,000 kcal1.42 USD
Crude protein20 %
Crude fat12 %
First ingredientChicken
AAFCO statementComplete for adult maintenance
Established by feeding trialYes
Full-time veterinary nutritionistYes
FDA recalls (last 10 years)2 (2019 vitamin D, canned only)

Why it scored 8.6

Hill's is the safest, most researched food here and the easiest to stay with if your dog later needs a therapeutic diet. The protein level is the one number to check against your dog's workload.

Where it loses

Protein level.

Still the right pick for

Dogs with a vet-managed condition, and seniors.

Changelog: Sep 11 — rank 2 → 3 · all changes

Science Diet Adult Chicken & Barley8.6 · $79
See Price