The short answer: A flat tie at B (78/100) vs B (78/100). Both are well-formulated grain-inclusive premium puppy options from established US brands. Wellness Complete Health Puppy opens with chicken + chicken meal and a comprehensive whole-food premix; Blue Buffalo Puppy opens with the same chicken-based pair and adds LifeSource Bits antioxidant architecture. Choose based on whether you want the whole-food density (Wellness) or the antioxidant-delivery technology (Blue Buffalo).

The scores

Wellness Complete Health Puppy: B (78/100) — Good. Deboned chicken primary, chicken meal secondary, grain-inclusive oatmeal and ground rice, salmon oil for DHA, comprehensive whole-food premix.

Blue Buffalo Life Protection Formula Puppy: B (78/100) — Good. Deboned chicken primary, chicken meal secondary, whole grain brown rice + oatmeal + barley carbs, LifeSource Bits antioxidant delivery.

How the ingredients compare

The top five ingredients:

Wellness Complete Health Puppy: Deboned Chicken, Chicken Meal, Oatmeal, Ground Rice, Ground Barley

Blue Buffalo Life Protection Puppy: Deboned Chicken, Chicken Meal, Brown Rice, Barley, Oatmeal

The two formulas are nearly identical at the top of the ingredient list — both lead with deboned chicken + chicken meal (the gold-standard opening for a chicken-forward kibble), followed by three grains each (oats, rice, barley in slightly different order and whole-vs-ground form). This is a classic chicken-and-rice grain-inclusive architecture executed well by both brands.

Further down, Wellness adds chicken fat, tomato pomace, ground flaxseed, natural chicken flavor, salmon oil (for DHA during brain development), carrots, sweet potatoes, apples, spinach, blueberries, broccoli, parsley, kale, and a comprehensive vitamin/mineral premix. Blue Buffalo adds chicken fat, flaxseed, natural flavors, fish oil (for DHA), dried chicory root (prebiotic fiber), and its signature LifeSource Bits — cold-formed antioxidant granules added post-extrusion to preserve vitamin C, E, and phytonutrient content that standard premix approaches degrade during the main kibble cook. Blue Buffalo’s whole-food panel includes carrots, sweet potatoes, blueberries, cranberries, apples, spinach, and parsley.

Where Wellness Puppy pulls ahead

Broader whole-food ingredient panel visible in the ingredient list: Wellness Complete Health Puppy lists its whole-food additions (spinach, broccoli, kale, parsley, blueberries, apples, carrots, sweet potatoes) directly in the ingredient deck. The transparency lets you see exactly what’s in the bag. Blue Buffalo uses some of the same ingredients but also encapsulates the vitamin/antioxidant layer inside LifeSource Bits, making it harder to audit from the ingredient list alone.

Salmon oil named explicitly: Wellness declares salmon oil as a specific DHA source, which matters because marine-derived DHA is the form that best supports puppy brain and retinal development (AAFCO guidance specifies DHA is essential for growth). Blue Buffalo lists “fish oil” generically without species specification.

Controlled calcium for puppy growth: Wellness Complete Health Puppy publishes calcium guaranteed-analysis appropriate for medium-breed puppy growth. Blue Buffalo Life Protection Puppy also controls calcium but has historically been formulated closer to the upper AAFCO ceiling for calcium — worth double-checking the guaranteed analysis if your puppy is expected to exceed 50lb adult weight. Shop on Amazon →

Where Blue Buffalo Puppy holds its own

LifeSource Bits antioxidant architecture: The post-extrusion cold-formed antioxidant delivery is a legitimate advantage for vitamin-sensitive compounds. Standard antioxidant premixes are mixed into the kibble dough and endure the full extrusion heat cycle, which degrades a meaningful percentage of vitamin C, E, and heat-sensitive phytonutrients. LifeSource Bits bypass this, preserving antioxidant activity better than standard approaches. Wellness does not use a comparable architecture.

Broader retail availability: Blue Buffalo is stocked in essentially every mainstream pet retailer and grocery chain in North America. Wellness is also widely available but less ubiquitous — fewer grocery stores carry it, and rural markets sometimes only have one of the two.

Life Protection line breadth: Blue Buffalo’s puppy portfolio includes Life Protection Puppy, Wilderness Puppy (high-protein grain-free), and Large Breed Puppy as distinct SKUs, letting owners pick the right variant for their puppy’s size and activity profile. Wellness offers Complete Health Puppy, CORE Puppy (grain-free), and Large Breed Puppy — similar breadth, but with slightly less granular size-targeting. Shop on Amazon →

The bottom line

A genuine tie between two well-formulated mainstream premium puppy options. Wellness Complete Health Puppy is the whole-food-transparency pick with named salmon oil for DHA — slightly better for label-auditors and owners who prioritize seeing every ingredient. Blue Buffalo Life Protection Puppy is the retail-ubiquitous pick with better antioxidant-delivery technology — the smart choice for buyers who want premium nutrition with zero supply-chain friction. Both deliver grain-inclusive, DCM-safe formulation with chicken-based protein at the same rubric score. Either is a strong pick for medium-breed puppies; for large-breed puppies, double-check the calcium specification on the specific bag and consider stepping up to a dedicated large-breed puppy formula.