Adult Perfect Digestion Large Breed Chicken & Barley Recipe Dry Dog Food
Verified Jun 8, 2026
This is a dry kibble formulated for adult large-breed dogs, using chicken as the primary animal protein along with barley, rice, oats, and corn as carbohydrate sources. It includes added prebiotic-type fibers and probiotic support ingredients, plus omega-3 and omega-6 fatty acids, glucosamine, and chondroitin for overall wellness in bigger dogs. The diet is designed to support digestive comfort and a healthy gut microbiome while providing complete and balanced maintenance nutrition.
This is a well-formulated large-breed adult diet with moderate protein and fat levels that should suit many healthy, average-activity big dogs. I especially like that it has undergone AAFCO feeding trials, which tells us the nutrients are not just balanced on paper but have been tested in real dogs. It’s a strong option if you’re looking for a reliable, digestion-focused food for a large-breed adult without specific protein allergies.
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At a Glance
KibbleLab Review
Strengths
- Chicken and chicken meal provide good-quality, digestible animal protein as key protein sources for adult maintenance.
- Backed by AAFCO feeding trials for adult maintenance, which is the strongest level of evidence that the diet is complete, balanced, and well-absorbed in real dogs.
- Carb sources include barley, brown rice, oats, and corn, which provide energy and fiber without relying on legumes that have been associated with some heart concerns in dogs.
- Includes omega-3 and omega-6 fatty acids, plus added glucosamine and chondroitin, which are useful supportive nutrients for large-breed joints and overall health, and the overall protein and fat levels are appropriate for many adult large-breed dogs.
Considerations
- Contains chicken, corn, soy, and fish ingredients, which can be problem proteins if your dog has known food allergies or sensitivities to any of these.
- At about 368 kcal per cup, it is fairly calorie-dense, so portion control is important for large breeds that are prone to weight gain.
- Ground pecan shells are used as a fiber source; while generally safe, very sensitive dogs may not tolerate higher-fiber formulas as well and may need a slower transition.
Full Ingredient List
Ingredients and analysis reflect manufacturer data at the time of our last update and can change without notice. Always check the actual product packaging before feeding.
Ingredient filtering helps identify compatible options but is not a substitute for a veterinary elimination diet.
Top 5 Ingredients Explained
01
Chicken
Chicken is a common animal-based protein in dog and cat foods, supplying essential amino acids, B vitamins, and energy-dense fats that support muscle maintenance, growth, and overall health; for cats it also contributes toward dietary taurine but must be present in sufficient amounts or provided via supplementation. It is prized for its digestibility and palatability, though some pets develop sensitivities or allergies to chicken, and nutritional value and safety depend on ingredient quality and processing—raw chicken carries pathogen risks and whole bones can pose choking or GI hazards.
02
Barley
Barley is a cereal grain used in pet foods primarily as a digestible carbohydrate and source of dietary fiber (including soluble beta‑glucans), along with modest amounts of B vitamins and minerals. It can support healthy digestion, help moderate post‑meal blood sugar and aid weight management in dogs, but provides limited protein for obligate carnivores like cats, must be cooked/processed for good digestibility, and may be unsuitable for pets with grain sensitivities or calorie‑restricted diets.
03
Brown Rice
Brown rice is a whole-grain carbohydrate and fiber ingredient commonly used in dog and cat foods to provide digestible energy, dietary fiber, and modest amounts of B‑vitamins and minerals; it typically offers more nutrients and fiber than white rice. It’s generally well tolerated and can help with sensitive stomachs, but because it is high in carbohydrates (not a primary protein source) and can contain trace inorganic arsenic depending on sourcing, it should be included in balanced formulations and monitored in overweight or diabetic pets.
04
Brewer's Rice
Brewer’s rice is a milling byproduct of rice processing made up of small broken white rice kernels commonly used in pet foods as a highly digestible carbohydrate source, filler and binder that provides readily available energy for dogs and cats while contributing little protein, fat or fiber. It is generally gentle on the stomach and cost‑effective, but diets using it must supply other ingredients for essential nutrients; pet owners should note its relatively high glycemic load (relevant for weight or diabetic pets), the potential for trace environmental contaminants associated with rice, and not confuse it with brewer’s yeast.
05
Whole Grain Oat
Whole Grain Oat is used in pet foods primarily as a digestible carbohydrate and source of soluble and insoluble fiber—especially beta‑glucans—that support healthy digestion and can help moderate post‑meal blood sugar and lipid levels. It also provides modest protein, B‑vitamins and minerals, is generally well tolerated by dogs (cats require far fewer carbs), but should be fed in appropriate amounts for weight or diabetic pets and may pose an issue for animals with grain sensitivities unless certified gluten‑free and properly processed for digestibility.
Nutritional Breakdown
How to read As Fed versus Dry Matter
As fed shows the numbers straight off the label, water included. Dry matter removes the water so you can compare a wet food and a dry food fairly.What is calorie density
How many calories the food packs per unit. Denser foods mean smaller portions for the same calories.Product Details & Brand
Product Specs
AAFCO Nutritional Adequacy
What is AAFCO
Association of American Feed Control Officials. It sets the nutritional
adequacy standards US pet foods are measured against.
What is AAFCO
Association of American Feed Control Officials. It sets the nutritional adequacy standards US pet foods are measured against.Brand
Hill's Science Diet is a premium pet food brand focused on life-stage and lifestyle-specific nutrition for dogs and cats, formulated with high-quality ingredients and balanced by veterinarians and nutritionists for optimal pet health.
Visit Hill's Science DietWSAVA publishes criteria for evaluating a manufacturer (qualified nutritionists, feeding trials, published research); it does not certify or endorse brands.
Manufacturer
Hill's Pet Nutrition maintains strict quality and safety standards in all of its manufacturing sites, with adherence to rigorous ingredient testing and safety validation procedures. Facilities follow current Good Manufacturing Practices (cGMPs) and are regularly audited for quality, safety, and consistency. All products meet or exceed AAFCO and FDA regulatory standards for pet food.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
Hill's Science Diet Adult Perfect Digestion Large Breed Chicken & Barley Recipe Dry Dog Food has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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Frequently Asked Questions
Has Hill's Science Diet ever been recalled?
We have no recalls on record for Hill's Science Diet. We monitor the FDA Pet Food Recall Database daily.
How does KibbleLab rate foods?
Our scores are based on ingredient composition, nutritional profile, AAFCO compliance, and health considerations. We don't penalize by-products, grains, or synthetic preservatives. Brands cannot pay for higher scores.
Is KibbleLab a substitute for veterinary advice?
No. KibbleLab provides data-driven food analysis, not medical advice. Always consult your veterinarian before making dietary changes, especially for pets with health conditions.
KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.
KibbleLab may earn affiliate commissions through product links. No one can pay for a higher score, or to change what we recommend for your pet.
Product data sourced from manufacturer websites, AAFCO statements, and FDA recall database. Last verified dates reflect our most recent data check.
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