The scores
Eagle Pack Natural Chicken & Pork: B (76/100) — Chicken meal and pork meal lead, with brown rice and oatmeal as the grain base. Clean, dual-protein formula with prebiotics and taurine from WellPet.
Diamond Naturals Adult Chicken & Rice: B (78/100) — Chicken and chicken meal lead, with quality grains, probiotics, superfoods (kale, blueberries, coconut), and chelated minerals. One of the best values in dog food.
How the ingredients compare
Eagle Pack: Chicken Meal, Pork Meal, Brown Rice, Oatmeal, Ground White Rice
Diamond Naturals: Chicken, Chicken Meal, Brown Rice, Cracked Pearled Barley, Peas
Eagle Pack's top two are both concentrated protein meals — chicken and pork — with water already removed. Diamond Naturals leads with whole chicken (70% water, drops after cooking) followed by chicken meal. Both hit grains by position three. The key difference: Eagle Pack delivers two distinct animal proteins; Diamond Naturals delivers one protein species but adds more nutritional extras throughout the formula.
Where Eagle Pack pulls ahead
Protein diversity: Pork meal alongside chicken meal is uncommon in dog food. Most brands pair chicken with fish or lamb — pork is rarely seen as a primary protein. This gives Eagle Pack a unique amino acid profile and reduces the chance of protein-specific sensitivities developing over time.
Dual concentrated proteins: Both #1 and #2 are named protein meals with water already removed. There's no ambiguity about protein volume — what you see on the label is what your dog gets. Diamond Naturals' whole chicken at #1 drops significantly in contribution after processing.
Tomato pomace: A source of lycopene (a powerful antioxidant) and soluble fiber that supports digestive health. It's a small ingredient this far down the list, but it's a smart functional inclusion. Shop on Amazon →
Where Diamond Naturals holds its own
Probiotics: Diamond Naturals includes guaranteed levels of live Bacillus coagulans, a spore-forming probiotic that survives kibble manufacturing. Eagle Pack has prebiotic chicory root but no live probiotics. For dogs with digestive issues, this is a meaningful advantage.
Superfoods: Kale, chia seed, blueberries, coconut, pumpkin, and spinach add antioxidants, fiber, and micronutrients that Eagle Pack's simpler formula lacks entirely. These are small amounts, but they contribute genuine nutritional value beyond the base formula.
Chelated minerals: Diamond Naturals uses zinc proteinate, iron proteinate, and manganese proteinate — chelated mineral forms that are significantly more bioavailable than the standard mineral salts used in Eagle Pack. This means your dog absorbs more of the minerals from each serving.
Value and availability: Diamond Naturals is widely available at pet stores, farm supply stores (Tractor Supply), and online retailers at a competitive price. Eagle Pack has limited distribution and lower brand recognition. Dollar-for-dollar, Diamond Naturals typically offers more food for the money. Shop on Amazon →
The bottom line
Diamond Naturals earns the higher score with its more complete nutritional package — probiotics, superfoods, chelated minerals, and easy availability at a competitive price. Eagle Pack's chicken-and-pork dual-meal base offers protein diversity that Diamond Naturals can't match, which matters for dogs with sensitivities to single-protein formulas. For most dog owners, Diamond Naturals is the more practical and more complete pick. But Eagle Pack's unique protein combination is worth seeking out if amino acid variety is your priority.