Is Sundays or Honest Kitchen Whole Food Clusters better for dogs?

Sundays Air-Dried Beef wins by 15 points on the v15 rubric (A/90 vs B/75). The structural gap is Sundays’ four-cut USDA-certified beef lead with two organ meats and bone-in calcium source plus gentle air-drying at low temperature. Honest Kitchen Whole Food Clusters delivers human-grade FDA-equivalent manufacturing certification, grain-inclusive composition (DCM-favorable), and explicit taurine + L-carnitine + Bacillus coagulans + chia + turmeric functional supplementation. Pick on whether you weight multi-cut beef-led nutrition (Sundays) or chicken-led grain-inclusive nutrition with human-grade certification (HK Whole Food Clusters).

Are Sundays and Honest Kitchen Whole Food Clusters both human-grade?

Both meet human-grade standards but with different scopes. Honest Kitchen produces all its pet food in a fully human-grade FDA-equivalent facility — every ingredient and the entire manufacturing process meets human-food-grade specifications. Sundays uses USDA-certified beef protein sources (the same regulatory framework that human-consumable beef must meet) and meets human-grade standards for the product. For owners specifically valuing the broadest human-grade regulatory certification across the entire product, Honest Kitchen has the slight structural edge. For owners specifically valuing USDA-certified single-protein sourcing, Sundays delivers that with explicit USDA certification.

Is Sundays grain-free?

Effectively yes. Sundays Air-Dried Beef Recipe uses quinoa as its primary carbohydrate — quinoa is technically a pseudocereal (botanically a seed, not a grass-derived grain) so the formula is considered grain-free for most regulatory purposes. The FDA’s 2018-2024 grain-free DCM (dilated cardiomyopathy) investigation specifically flagged grain-free formulations with pulse legumes in primary positions; Sundays uses quinoa rather than pulse legumes, which partially mitigates the DCM concern. Honest Kitchen Whole Food Clusters is grain-inclusive (oats #2, barley #3), which more fully mitigates the DCM watchlist concern. For DCM-predisposed breeds, the grain-inclusive Honest Kitchen composition is structurally more favorable.

Sundays vs Honest Kitchen Whole Food Clusters: Which Alternative-Process Dog Food Is Better?

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The short answer: Sundays Air-Dried Beef wins by 15 points (A/90 vs B/75) — the structural gap reflects two protein-source design choices. Sundays leads with USDA beef + USDA beef heart + USDA beef liver + USDA beef bone (four named USDA-certified beef cuts including two organ meats and bone-in calcium source) followed by quinoa. Honest Kitchen Whole Food Clusters leads with whole chicken at #1 alone, with chicken liver at #5. Sundays uses air-drying at low temperature; HK Whole Food Clusters uses cold-press + roast + dehydrate cluster manufacturing. For owners specifically wanting multi-organ-meat beef-led nutrition, Sundays is structurally tighter. For owners wanting human-grade certification with chicken-led grain-inclusive nutrition, HK Whole Food Clusters is.

The scores

Sundays Air-Dried Beef Recipe for Dogs: A (90/100) — USDA Beef, USDA Beef Heart, USDA Beef Liver, USDA Beef Bone, Quinoa.

Honest Kitchen Whole Food Clusters Whole Grain Chicken Recipe Dry Dog Food: B (75/100) — Chicken, Oats, Barley, Flaxseed, Chicken Liver.

How the ingredients compare

The top-five ingredients reveal the formulation split between these two products:

Sundays: USDA Beef, USDA Beef Heart, USDA Beef Liver, USDA Beef Bone, Quinoa

Honest Kitchen Whole Food Clusters: Chicken, Oats, Barley, Flaxseed, Chicken Liver

The 15-point gap (Sundays wins by 15 points) shows where the v15 rubric weights ingredient breadth, protein density, and supplement depth differently.

Where Sundays pulls ahead

Four-cut USDA-certified beef lead with two organ meats: Sundays leads with USDA beef (muscle meat) + USDA beef heart + USDA beef liver + USDA beef bone — four named USDA-certified beef cuts in the top four positions, including two organ meats and a bone-in calcium source. Honest Kitchen Whole Food Clusters leads with whole chicken alone at #1 (single protein lead), with chicken liver at #5 and eggs at #10 as later-position protein sources. For owners specifically valuing multi-cut organ-meat-forward feeding mirroring biologically-appropriate “whole prey” principles, Sundays delivers structurally more. Shop on Amazon →

Air-drying at low temperature preserves nutrient integrity: Sundays uses air-drying at low temperature — the gentle process preserves heat-sensitive nutrients in their natural form better than the cold-press + roast + dehydrate cluster process used for HK Whole Food Clusters at the roast phase. For owners specifically valuing the gentlest possible processing for nutrient preservation, Sundays is structurally tighter.

Single-protein elimination-diet support: Sundays Air-Dried Beef Recipe uses USDA beef as the sole animal protein source — no chicken, no fish, no lamb cross-contamination. For owners managing dogs with chicken or fish protein sensitivities, the single-protein composition supports elimination-diet protocols. Honest Kitchen Whole Food Clusters uses chicken + chicken liver + eggs + fish oil — multi-protein composition that doesn’t support strict elimination diets.

Where Honest Kitchen Whole Food Clusters holds its own

Human-grade FDA-equivalent manufacturing facility: Honest Kitchen produces all its pet food in a fully human-grade facility — equivalent FDA oversight to USDA-inspected human-food plants. Sundays is also human-grade for its USDA-certified protein sources, but Honest Kitchen carries the full human-grade-facility certification across the entire product. For owners specifically valuing the broadest human-grade regulatory certification as a sourcing trust signal, Honest Kitchen has a slight structural edge. Shop on Amazon →

Grain-inclusive whole grains with chicken-led nutrition: Honest Kitchen Whole Food Clusters uses oats at #2 and barley at #3 — whole grains in grain-inclusive composition. The FDA’s 2018-2024 grain-free DCM (dilated cardiomyopathy) investigation specifically flagged grain-free formulations; grain-inclusive composition substantially mitigates the DCM concern. Sundays Air-Dried Beef Recipe uses quinoa as its primary carbohydrate (technically grain-free since quinoa is a pseudocereal). For DCM-predisposed breeds where the grain-inclusive vs grain-free distinction matters, Honest Kitchen has the structurally favorable composition.

Explicit taurine + L-carnitine + Bacillus coagulans + chia + turmeric functional inclusions: Honest Kitchen Whole Food Clusters explicitly supplements taurine (cardiac function), L-carnitine (fatty acid transport for cardiac and skeletal muscle metabolism), Bacillus coagulans probiotic, plus the brand’s signature chia seed + turmeric + kale + kelp functional deck. Sundays relies on naturally-occurring levels in the USDA beef and quinoa whole-food ingredients without these explicit functional supplements.

The bottom line

Sundays Air-Dried Beef wins by 15 points on the v15 rubric. The structural gap reflects two design choices: Sundays’ four-cut USDA-certified beef lead with two organ meats and bone-in calcium source plus gentle air-drying at low temperature vs Honest Kitchen Whole Food Clusters’ single chicken-protein lead with conventional synthetic supplementation and cluster manufacturing. Honest Kitchen wins on human-grade FDA-equivalent facility certification across the entire product, grain-inclusive composition (DCM-favorable), and explicit functional supplementation (taurine + L-carnitine + Bacillus coagulans + chia + turmeric). For owners specifically prioritizing multi-cut beef-led nutrition with single-protein elimination-diet support, Sundays. For owners prioritizing chicken-led grain-inclusive nutrition with human-grade certification and explicit functional supplementation, HK Whole Food Clusters.