The scores
Rachael Ray Nutrish PEAK Prey-Inspired Turkey & Venison: B (76/100) — Good. Turkey + turkey meal up front, supplemental taurine, and a named probiotic carry the formula past the dry-rubric multi-pea-form legume penalty under v15 — the named-protein density and DCM-mitigation supplements now edge out the legume deduction by a single point.
Rachael Ray Nutrish Real Chicken & Veggies: B (75/100) — Good. Chicken and chicken meal first; the live-analyzer rescore lifted Nutrish from C/65 to B/75 on stronger top-of-panel protein density. Soybean meal and ground wheat in the lower top-five still drag the score below the no-filler tier.
How the ingredients compare
The top five ingredients:
Nutrish PEAK: Turkey, Turkey Meal, Peas, Pea Starch, Pea Protein
Nutrish (Standard): Chicken, Chicken Meal, Dried Peas, Brown Rice, Soybean Meal
Both formulas open the same way — fresh meat plus meat meal — but from position three they diverge. PEAK commits to the grain-free route with a three-way pea stack (whole peas, pea starch, pea protein). Standard Nutrish goes grain-inclusive with dried peas, brown rice, and — the differentiator — soybean meal at position five. Soybean meal is a cheap plant-protein stretcher that inflates the protein-on-label number; it's also one of the most common allergens in dog food, a filler that premium formulas consistently avoid.
Further down, PEAK adds venison (a second named red meat), dried egg product, ground flaxseed, salmon oil, and — critically — supplemental taurine. Standard Nutrish adds poultry fat, ground whole wheat (another filler-class grain), pea starch, dried beet pulp, and carrots. No taurine is listed in standard Nutrish.
Where Nutrish PEAK pulls ahead
Two named meats, no soybean or wheat: Turkey + venison in the ingredient list plus the absence of soybean meal and ground whole wheat ARE structural upgrades over standard Nutrish, but the rubric grade now lands lower because the multi-pea-form penalty outweighs those wins. The "premium line" still has real formulation differences; under the current rubric, those differences just don't compensate for the legume density.
Supplemental taurine: PEAK adds guaranteed taurine to address DCM concerns in legume-heavy grain-free diets. This is one of the single most important distinguishing features of the premium line, and it directly counters the #1 concern with grain-free kibble. Standard Nutrish doesn't include it.
Salmon oil for EPA/DHA: PEAK's salmon oil contributes pre-converted omega-3 fatty acids (EPA and DHA) that drive skin, coat, and joint benefits. Standard Nutrish relies on poultry fat and carrots — no marine omega-3 source. Shop on Amazon →
Where Standard Nutrish holds its own
Lower price per pound: Standard Nutrish typically runs 30-40% cheaper than PEAK at the same retailer. If budget is a hard constraint, standard Nutrish is a C, not an F — it's still meaningfully better than the worst of the grocery-aisle field.
Grain-inclusive = lower DCM concern: This is the one area where standard Nutrish is structurally safer. By including brown rice and whole wheat rather than stacking peas, it sidesteps the legume pattern the FDA flagged. If you have a DCM-risk breed and can't afford PEAK, standard Nutrish's grain-inclusive formulation is actually a quieter strength.
Wider retail availability: Standard Nutrish is stocked in almost every grocery store, big-box, and pharmacy; PEAK is a premium specialty SKU found primarily at pet-specialty retailers and larger big-box stores. Shop on Amazon →
The bottom line
Under v15, PEAK is the narrow winner — better named protein density, supplemental taurine, and a named probiotic, all of which now edge out the multi-pea-form legume penalty by a single point (B/76 vs B/75). If your budget supports the premium step-up and you're not in a DCM-risk breed, PEAK is the better formula. The one wrinkle: if you're specifically worried about DCM in a high-risk breed, standard Nutrish's grain-inclusive formulation is ironically the safer structural choice, even though PEAK now scores 1 point higher overall. For most dogs in non-DCM-risk breeds, PEAK is the better nutrition at a meaningful-but-justifiable premium. Read our full reviews of Nutrish PEAK and Rachael Ray Nutrish for the complete breakdown.