The scores
Redford Naturals Chicken & Brown Rice: B (78/100) — Good. Chicken first, chicken meal second, whole-grain oatmeal and brown rice, plus herring meal and fish oil for omega-3s.
Kirkland Signature Adult Chicken, Rice & Vegetable: B (78/100) — Good. Chicken as the first ingredient, chicken meal, brown rice, white rice, and a broader vegetable/probiotic premix.
How the ingredients compare
The top five ingredients:
Redford Naturals: Chicken, Chicken Meal, Brown Rice, Oatmeal, Brewers Rice
Kirkland Signature: Chicken, Chicken Meal, Whole Grain Brown Rice, White Rice, Chicken Fat
The top two ingredients are identical — fresh chicken plus chicken meal — which is the single strongest parallel between the two formulas. From there they diverge gently. Redford uses three rices (brown, brewers) plus oatmeal. Kirkland uses two rices (whole brown, white) and moves chicken fat up to position five. Both are grain-inclusive formulas built around similar chicken-forward protein strategies.
Further down, Redford layers in herring meal, fish oil, dried blueberries, dried spinach, and dried egg product. Kirkland layers in dried peas, dried potatoes, carrots, cranberries, and — notably — guaranteed live probiotics (Bacillus coagulans and related strains) plus a slightly denser vegetable premix.
Where Redford Naturals pulls ahead
Better omega-3 coverage: Herring meal plus fish oil delivers EPA and DHA directly — the pre-converted omega-3s that drive skin, coat, joint, and cognitive function. Kirkland's omega-3 load is smaller (mostly flaxseed-derived ALA). For dogs whose health needs lean on marine omega-3s — skin/coat issues, arthritis, senior cognition — Redford is the stronger pick.
Whole-food antioxidants: Dried blueberries and dried spinach in the ingredient list contribute real anthocyanins and lutein/zeaxanthin. Kirkland's cranberries and carrots are nice, but the Redford berry-plus-leafy-green combination is denser.
Dried egg product: A high-biological-value protein source. Kirkland doesn't include it. Shop on Amazon →
Where Kirkland Signature holds its own
Guaranteed live probiotics: Kirkland lists specific live-culture strains (Bacillus coagulans and related) with guaranteed colony-forming units. For dogs with sensitive digestion, loose stools, or recovering from antibiotics, that matters. Redford has no disclosed probiotics.
Retail availability and price per pound: Costco's 40-pound bag of Kirkland Signature is one of the lowest dollar-per-pound ratios in the entire B-tier category. Redford Naturals is Pet Supplies Plus-exclusive, which limits geographic reach and typically runs a bit higher per pound.
Denser vegetable premix: Dried peas, dried potatoes, carrots, plus the berries. Not a dramatic difference, but a slightly broader functional-ingredient footprint. Shop on Amazon →
The bottom line
On raw score they're identical. On substance they lean in slightly different directions — Redford for omega-3s and whole-food antioxidants, Kirkland for probiotics and value pricing. If you're equidistant between a Costco and a Pet Supplies Plus, pick based on what your specific dog needs more of. If one retailer is markedly more convenient, just go with that one — you're not compromising much either way. Read our full reviews of Redford Naturals and Kirkland Signature for the complete breakdown.