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The short answer: Tie at A (90/100). The interesting structural overlap: both brands argue against conventional kibble formulation but take opposite paths. Nature’s Logic is the only A-tier kibble we’ve reviewed with zero synthetic vitamins or minerals — every micronutrient comes from whole-food sources like alfalfa concentrate, montmorillonite clay, spray-dried liver, and almonds. Acana is the WholePrey philosophy — six different animal proteins in primary positions plus organ meats and bone, sourced from regional Canadian farms.

The scores

Nature's Logic Canine Original Chicken Meal Feast: A (90/100) — Chicken Meal, Millet, Chicken Fat, Yeast Culture, Pumpkin Seed Flour.

Acana Red Meat Recipe: A (90/100) — Beef, Beef Liver, Whole Pork, Beef Tripe, Whole Mackerel.

How the ingredients compare

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

Nature's Logic: Chicken Meal, Millet, Chicken Fat, Yeast Culture, Pumpkin Seed Flour

Acana: Beef, Beef Liver, Whole Pork, Beef Tripe, Whole Mackerel

Both formulas earn the same v15 score, but the ingredient lineups tell different stories about how they got there — that is where the actual pick decision lives.

Where Nature's Logic pulls ahead

Zero synthetic vitamins or minerals: The Nature’s Logic differentiator. Most kibble — including most A-tier kibble — bolts a synthetic vitamin/mineral premix onto the formula to satisfy AAFCO targets. Nature’s Logic instead sources every required nutrient from whole-food ingredients. Acana carries a synthetic vitamin/mineral supplement panel typical of the category. Shop on Amazon →

Six named probiotic strains plus four fermentation enzymes: Lactobacillus acidophilus, Lactobacillus casei, Bifidobacterium bifidium, Enterococcus faecium, Bacillus coagulans, plus bromelain. Acana lists fewer named bacterial strains. For dogs with chronic GI sensitivity or post-antibiotic recovery, Nature’s Logic’s depth is meaningful.

Grain-inclusive with millet: Millet at #2 is a gluten-free ancient grain — pre-FDA-DCM-watchlist structure. Acana Red Meat is grain-free with red lentils and chickpeas at primary positions, which the FDA’s 2018–2024 grain-free DCM investigation specifically flagged.

Where Acana holds its own

WholePrey animal-ingredient density: Acana Red Meat’s top five ingredients are beef, beef liver, whole pork, beef tripe, and whole mackerel — five different animal sources in the lead. The brand publishes that 60% of the formula is animal-derived. Nature’s Logic leads with chicken meal and reaches 85% animal-protein density through total inclusion, but Acana’s primary-position spread is wider. Shop on Amazon →

Organ meat in the top five: Beef liver at #2 and beef tripe at #4 deliver bioavailable vitamin A, B12, folate, iron, copper, and natural palatability. Nature’s Logic includes spray-dried chicken liver further down the panel but doesn’t front organ meats in the same way.

Marine omega-3 from whole mackerel: Whole mackerel at #5 supplies marine EPA/DHA in its whole-fish form (rather than fish-meal form). The whole-fish source is what raw-feeders and ancestral-diet advocates argue is structurally more bioavailable than rendered fish meal.

The bottom line

Nature’s Logic and Acana both earn A/90 but represent the two opposite ends of the “natural” kibble philosophy. Nature’s Logic argues that whole-food micronutrient sourcing matters more than animal-protein density — alfalfa concentrate, montmorillonite clay, spray-dried liver, and almonds replace the synthetic vitamin/mineral premix that defines mainstream kibble. Acana argues that WholePrey animal-ingredient density matters more — six animal proteins in the lead, organ meats in primary positions, whole-fish marine omega-3. Both are A-tier formulations; pick on which philosophy of "natural" matches your view.