The scores
Earthborn Holistic Primitive Natural: B (78/100) — Good. Turkey meal and chicken meal as primary proteins, grain-free tapioca and sweet potato base, fruit and vegetable premix, and MSC-certified fish inclusions on select recipes.
Taste of the Wild High Prairie: B (78/100) — Good. Buffalo as primary protein, lamb meal and chicken meal as concentrated protein sources, legume-based carbs, and a proprietary K9 Strain Probiotic.
How the ingredients compare
The top five ingredients:
Earthborn Holistic Primitive: Turkey Meal, Chicken Meal, Tapioca, Chicken Fat, Sweet Potato
Taste of the Wild High Prairie: Water Buffalo, Lamb Meal, Chicken Meal, Sweet Potatoes, Peas
Both brands use the dual-meat-meal strategy — Earthborn leads with turkey meal + chicken meal, TOTW uses lamb meal + chicken meal but starts with fresh buffalo. Fresh buffalo adds moisture-heavy muscle meat as ingredient #1 (a marketing advantage; less meaningful nutritionally after kibble processing), but TOTW’s three named meat sources in the top three beats Earthborn’s two.
They diverge on the carb layer. Earthborn uses tapioca and sweet potato, while TOTW uses sweet potatoes, peas, and pea flour. Both brands add chicken fat, natural flavor, and a fruit/vegetable premix (Earthborn: blueberries, cranberries, carrots, apples, spinach; TOTW: tomatoes, blueberries, raspberries). TOTW adds its trademarked K9 Strain Probiotic at a guaranteed live-organism count; Earthborn uses a generic probiotic panel.
What Taste of the Wild does well
Three named meat sources in the top five: Buffalo + lamb meal + chicken meal collectively deliver protein diversity that Earthborn’s turkey meal + chicken meal pair doesn’t match. Multiple protein sources also reduce the risk of a dog developing sensitivity to any single protein.
K9 Strain Probiotic: TOTW’s proprietary live-probiotic blend is added after extrusion in sufficient quantity to survive shelf life and deliver a documented live-organism count. Few kibble brands do this; most probiotics listed on pet food labels die during extrusion heat. Earthborn lists probiotics on its ingredient panel but doesn’t publish guaranteed live counts. Shop on Amazon →
What Earthborn Holistic does well
MSC-certified fish sourcing: Earthborn’s fish-inclusion recipes use Marine Stewardship Council certified sustainable fisheries. TOTW also uses ocean fish but without the explicit sustainability certification. For buyers who care about supply-chain sustainability, Earthborn’s explicit certifications matter.
Transparent family ownership: Earthborn is made by Midwestern Pet Foods, a family-owned manufacturer in Indiana. TOTW is made by Diamond Pet Foods, a large private company that also makes Kirkland Signature, Premium Edge, Professional, and many other brands. Some buyers prefer smaller manufacturers; others prefer the scale QA advantages of large ones. Genuine trade-off.
No recall history comparable to Diamond: Diamond Pet Foods had a widely publicized 2012 salmonella recall spanning many of its brands, including TOTW. Midwestern Pet Foods had a serious aflatoxin recall in 2020-2021 affecting some SportMix lines; the Earthborn line itself was not directly involved but the manufacturer’s QA history came under scrutiny. Both brands have had to upgrade QA in recent years — neither is recall-free. Shop on Amazon →
The bottom line
For a dog where K9-Strain-level probiotic support and maximum protein-source diversity matter, Taste of the Wild is the pick. For a dog where sustainable fish sourcing and family-owned manufacturing are the tiebreakers, Earthborn Holistic is the pick. With identical scores, this is a coin flip between two well-formulated mid-premium grain-free options — most dogs will do equally well on either, and price and local availability are legitimate tiebreakers.
Corrected 2026-10-19: we removed claims we could not support; we corrected factual errors, and grades and score comparisons that did not match our current scores.