By MyAwesomeBuy Research Team · Updated April 14, 2026 · Our Methodology
1,800+ reviews analyzed
No manufacturer paid for placement. Rankings based on verified buyer review data.
Quick Answer
Merrick Lil' Plates Grain-Free ($51.98) edges Nutro Wholesome Essentials ($72.98) on ingredient purity — real Texas Beef as the first ingredient with no corn, wheat, or soy. Choose Nutro for breed-specific large breed formulas with controlled calcium levels; choose Merrick if grain-free and whole-food ingredients are the priority.
Nutro vs. Merrick Dog Food: Which Brand Is Better?
Nutro and Merrick both position as premium "clean" dog food brands, but serve different ends of the natural dog food market. Nutro Natural Choice at $72.98-55 for 30 lbs uses "farm-raised" chicken as the first ingredient with non-GMO ingredients and no artificial colors or preservatives — the accessible premium positioning for buyers upgrading from mainstream brands (Purina, Pedigree) without the ultra-premium price jump. Merrick Grain Free and Classic at $50-70 for 22-25 lbs uses deboned proteins as the first five ingredients, with a notably higher protein percentage (32-38% crude protein) and fat content — the performance and active dog tier of natural dog food where ingredient quality and protein density are the primary differentiators.
Nutritional Comparison
Nutro Natural Choice Chicken & Brown Rice: 26% protein, 15% fat — maintenance-level nutrition appropriate for adult dogs with average activity levels. Grain-inclusive (brown rice, barley) which is veterinarian-preferred for most dogs without diagnosed grain sensitivities. AAFCO-complete for all life stages. Manufactured by Mars Petcare — larger corporate backing than Merrick.
Merrick Grain Free Real Chicken & Sweet Potato: 32% protein, 15% fat — higher protein density appropriate for active dogs and working breeds. Grain-free, which FDA is studying for potential DCM (dilated cardiomyopathy) association — discuss with your veterinarian if feeding grain-free long-term. Acquired by Nestlé Purina in 2015 but manufactured independently.
Nutro Wholesome Essentials Large Breed Adult Chick...
Choose Nutro for: average activity adult dogs, dogs without diagnosed protein or grain sensitivities, households where feeding a mid-premium brand is the goal without ultra-premium cost, and dogs with histories of digestive upset on grain-free diets (switch to Nutro's grain-inclusive formulas). Choose Merrick for: active and working dogs with higher protein needs, dogs that have thrived on high-protein diets historically, and households that specifically prioritize named meat-first ingredient lists and higher protein percentages. Neither brand is superior for every dog — the best dog food is the one the dog thrives on.
The Bottom Line
Nutro Natural Choice Chicken & Brown Rice (30 lbs) for adult maintenance nutrition at $48. Merrick Grain Free Real Chicken (22 lbs) for active dogs with higher protein needs at $58. Hill's Science Diet for veterinarian-recommended clinical nutrition at $55. Purina Pro Plan for the science-backed mainstream premium option at $45. Transition between dog foods over 7-10 days to prevent the digestive upset that commonly leads owners to incorrectly blame the new food.
We compared Nutro and Merrick across protein source quality, grain-free formulation options, ingredient transparency, and palatability for picky eaters, cross-referencing expert measurements, hands-on reviews, and verified owner satisfaction data.
Merrick Lil' Plates Grain Free Dry Dog Food Real T...
Heavy 30 lb bag is difficult to maneuver from car to storage for many buyers — the 15 lb bag is available for households that cannot lift the full-size format
Contains brown rice and whole grain oats as primary carbohydrates — not appropriate for dogs prescribed a grain-free diet for allergy management; switch to Nutro Limited Ingredient Diet for grain-free options
Brown rice has a higher glycemic index than barley or lentils — diabetic dogs or those prone to weight gain may require a lower-carbohydrate formula per veterinary guidance
Hill's Science Diet Large Breed Adult 1-5 Dry Dog Food is veterinarian-recommended nutrition formulated specifically for the physiological requirements of large breed adult dogs (typically 50+ lbs). The glucosamine and chondroitin content at clinically studied levels supports the joint health that large breeds are disproportionately susceptible to—hip dysplasia and osteoarthritis are significantly more common in large breeds, and nutritional support from puppyhood through adulthood has demonstrated outcomes in long-term joint health research.
The protein source is chicken, supported by whole grain barley and sorghum for digestible carbohydrate energy. Hill's Science Diet is manufactured to prescription-diet quality control standards in the US, and the ingredient consistency across lots is notably higher than budget brands where formulation can vary. The large breed formulation adjusts caloric density and calcium-phosphorus ratios for the controlled growth rates that prevent developmental bone problems in large breeds.
Against Blue Buffalo and Purina Pro Plan on this page, Hill's Science Diet competes on veterinary trust and joint-specific nutrition at a price point above grocery brands but below prescription diets. For large breed owners whose veterinarian has specifically recommended Hill's, the brand alignment with professional recommendation is practically significant. For owners selecting based on ingredient profiles and price, Purina Pro Plan's comparable research-backed formulations are a competitive consideration.
Full Specs & Measurements
Upc
079105160032 079105116459
Asin
B00TQRJYO6
Flavor
Chicken
Occasion
Daily Feeding
Pet Type
Dog
Item Form
Dry Kibble
Brand Name
Nutro
Unit Count
480.0 Ounce
Item Weight
30 Pounds
Manufacturer
Mars Petcare US
Model Number
10157644
Container Type
Bag
Dog Breed Size
Large
Item Type Name
Dog Food
Target Species
Dog
Number Of Items
1
Product Benefits
Supports healthy skin & coat
Best Sellers Rank
#5,407 in Pet Supplies (See Top 100 in Pet Supplies) #367 in Dry Dog Food
Additional Features
Large Breed Specific, Joint Health Support, Aids in Digestion
Maintaining overall health, Joint health support, Immune support
Global Trade Identification Number
00079105116459
Also Excellent
Merrick Lil' Plates Grain Free Dry Dog Food Real Texas Beef & Sweet Potato, 12 lb
$51
at Amazon
Best for: Chihuahuas with chicken sensitivities or owners preferring grain-free formulas with a high-quality novel protein source
“Merrick's Lil' Plates beef formula offers a quality grain-free alternative for Chihuahuas who don't tolerate poultry. Real beef provides complete protein with strong palatability appeal to picky Chihu”
Purina Pro Plan Puppy Large Breed Chicken & Rice at 34 lbs is the large-breed puppy formulation from the brand that veterinary nutritionists most frequently recommend when asked for a non-prescription food. The specific claim is meaningful: Pro Plan's research team includes Board-Certified Veterinary Nutritionists on staff, and the large breed puppy formula's calcium-to-phosphorus ratio (0.8:1) is calibrated for the controlled skeletal development that prevents the developmental orthopedic diseases that excess calcium supplementation causes in growing large breed puppies.
DHA from omega-rich fish oil supports brain and vision development during the puppy growth period. The high-quality protein from real chicken supports lean muscle development. Purina's manufacturing quality control is among the most rigorous in the pet food industry, with in-house testing facilities and batch traceability.
The 34-lb bag at this price point represents meaningful per-feeding cost savings over smaller bags while maintaining freshness within the recommended use window. For large breed puppies being fed Pro Plan through the recommended 12–18 month puppy period (larger breeds mature later than small breeds), bulk purchasing reduces the ongoing cost of this research-backed feeding choice. Transitioning from puppy to adult formula at 12–18 months should use the corresponding Pro Plan Large Breed Adult formula to maintain nutritional continuity.
Full Specs & Measurements
Upc
022808260066
Asin
B01ALL3WB6
Flavor
Beef
Occasion
maintenance
Item Form
Crunchy, Kibble, Bites
Brand Name
Merrick
Unit Count
192 Ounce
Item Weight
12 Pounds
Manufacturer
Merrick Pet Care
Model Number
26006
Container Type
Bag
Dog Breed Size
Small
Item Type Name
Merrick Lil Plates Small Breed Dry Dog Food with Real Meat
Target Species
Dog
Number Of Items
1
Product Benefits
Supports joint, skin, coat, and digestive health
Best Sellers Rank
#8,314 in Pet Supplies (See Top 100 in Pet Supplies) #472 in Dry Dog Food
Additional Features
Dental;
Included Components
One (1) 12 lb Bag - Merrick Lil' Plates Grain Free Small Breed Dry Dog Food Real Texas Beef + Sweet Potato Recipe
Hill's Science Diet and Purina Pro Plan are the two brands most frequently recommended by veterinarians. Both have conducted extensive AAFCO feeding trials and have full-time veterinary nutritionists on staff.
Is grain-free dog food better?
Not necessarily—and potentially harmful. The FDA investigated a link between grain-free diets and dilated cardiomyopathy (DCM) in dogs. Unless your dog has a grain allergy (rare), stick with grain-inclusive formulas from established brands.
How much should I feed my large breed dog?
Follow the feeding guidelines on the bag as a starting point, then adjust based on body condition. You should be able to feel (but not see) your dog's ribs. Most adult large breeds eat 3-4 cups per day split into two meals.
When should I switch from puppy to adult food?
Large breeds: 18-24 months. Medium breeds: 12 months. Small breeds: 9-12 months. Transition gradually over 7 days—mix increasing amounts of new food with decreasing amounts of old food to avoid digestive upset.
Is Blue Buffalo worth the higher price?
It depends on your priorities. Blue Buffalo uses high-quality named proteins and no corn/wheat/soy. The price premium is real but so is the ingredient quality. For dogs without food sensitivities, Hill's and Purina deliver comparable nutrition at lower cost.
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