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Natural Balance Limited Ingredient Reserve Grain-Free Duck & Potato Puppy Recipe Dry Dog Food, 22-lb bag
Natural Balance

Limited Ingredient Reserve Grain-Free Duck & Potato Puppy Recipe Dry Dog Food, 22-lb bag

Evidence Fair
AAFCO compliance inferred from product name
dry $3.64/lb

Graded by The Sniff System

In plain English

Natural Balance Limited Ingredient Reserve Grain-Free Duck & Potato Puppy Recipe is a dry food for puppies, featuring duck as its main protein.

This formula offers good protein quality, with duck providing solid amino acid coverage. It also includes quality fat sources, like menhaden fish oil, which is a good source of EPA and DHA. The carbohydrate sources are also considered quality, and the fiber content is declared.

Nothing concerning in the deck.

Good fit for puppies, especially those with sensitivities who might benefit from a limited ingredient, grain-free diet.

Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.

Who this is for

Strong fit for active large sporting breeds, including the Golden Retriever, navigating diet-associated DCM concerns. Working in its favor: taurine listed as added ingredient. Duck anchors position 1, with zero pulses in the top 15. Goldens appeared disproportionately in the FDA's DCM reports. Pulse-heavy grain-free formulas warrant extra caution; named animal protein with organ meat or marine sources is the safer fit.

Looking at this for puppy Golden Retrievers or Golden Retrievers with diet-associated DCM concerns ? We are building dedicated pages for these combinations.

Auto-matched from this product's measurements (ingredients, life stage, calorie density) to a breed archetype. Not a substitute for vet input on your specific dog.

Research informing this analysis

Methodology

The Sniff System grades this product against 2 cited studies relevant to its profile. Each link opens the original source.

  • FDA, 2022
    epidemiology · breed predisposition· cited in 4 claims
  • FDA, 2019
    diet composition· cited in 2 claims

Every claim on Sniff traces to a source. If you find a citation that's wrong, outdated, or misapplied, tell us.

Why this score

Solid grade. 66/100 (B) reflects the structural fit of this formula against The Sniff System's eight scoring components. Protein quality did the heavy lifting (+16 points): Reasonable protein quality. duck delivers solid amino acid coverage. The supporting beat: fat quality (+12 points). Quality fat sources: named fat with marine oil (EPA and DHA source). What's keeping it out of A-tier: protein quality (16 of 27 possible). Full protein quality requires named-species named-cut proteins in the top of the deck (e.g., "deboned chicken" rather than "chicken meal" or "poultry meal").

What lifted the score

Reasonable protein quality. duck delivers solid amino acid coverage.

PQI

Quality fat sources: named fat with marine oil (EPA and DHA source).

FQI

Quality carbohydrate sources with declared fiber.

CQI
What pulled it down

No negative drivers crossed our reporting threshold.

What sets this apart
  • Lowest crude fiber in Natural Balance's lineup (4.4% DMB)
  • Top quartile for caloric density in Natural Balance's lineup (395 kcal/cup)
  • Bottom 10% for carb quality in Natural Balance's lineup (12/16)

Computed against the rest of our catalog. Percentiles refresh on each catalog update.

Similar dog foods worth considering

Three lenses on products with formulation profiles similar to this one.

Surfaced from a vector similarity search across 3,491 scored dog foods. How this works.

Guaranteed analysis
Dry-matter protein: 28%
Protein
25%
min (as fed)
Fat
12%
min (as fed)
Fiber
4%
max (as fed)
Moisture
10%
max
Ingredients

Read why each ingredient is good or bad for dogs.

42 total
Good Neutral Watch Flagged
  1. 1
    duck

    Real meat. Often used as a novel protein for dogs with sensitivities to chicken or beef.

    Position 1: primary protein source. After cooking removes water, this may drop in proportional weight, but it anchors the recipe.

  2. 2
    duck meal

    Duck cooked into a dry concentrate. Per pound, more protein than fresh duck.

    Position 2: co-primary protein. Two named animal proteins in the top 2 is a strong protein build.

  3. 3
    potato

    Standard white potato. Steady carb source, common starch in grain-free recipes.

    Position 3: meaningful whole-food inclusion. Source of vitamins, antioxidants, or natural fiber.

  4. 4
    sweet potato

    Complex carb with fiber and beta-carotene. Gentle on the stomach.

    Position 4: meaningful whole-food inclusion. Source of vitamins, antioxidants, or natural fiber.

  5. 5
    tapioca starch

    Refined cassava starch, used as a binder. Easy to digest, low on nutrition.

  6. 6
    potato protein

    Concentrated potato protein. Like pea protein, it inflates the protein number without matching meat-quality amino acids.

    Position 6: moderate plant-protein boost. Less likely to materially shift the protein profile.

  7. 7
    canola oil

    Plant oil. Some omega-3 from the parent plant, though dogs absorb it less efficiently than fish-derived omega-3. Fine in moderation.

    Position 7: trace fat. Below the level that materially shifts the fat profile.

  8. 8
    brewers dried yeast

    Yeast left over from brewing. Rich in B vitamins and amino acids. A traditional and well-tolerated inclusion.

  9. 9
    natural flavor

    Legal term for animal-derived flavoring, usually hydrolyzed liver or broth. Adds taste, says nothing about quality.

  10. 10
    flaxseed

    Plant source of omega-3. Helpful for skin and coat, though dogs absorb omega-3 from fish more efficiently.

    Position 10: trace fat. Below the level that materially shifts the fat profile.

  11. 11
    dicalcium phosphate

    Calcium and phosphorus combined. Required source of both minerals, especially in formulas without much bone content.

  12. 12
    menhaden fish oil

    Omega-3 from menhaden, a small oily fish. Same skin and coat support as salmon oil.

    Position 12. Moderate marine-oil inclusion. Supplements EPA/DHA without being the primary fat.

  13. 13
    salt

    Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.

  14. 14
    potassium chloride

    Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.

  15. 15
    dl-methionine

    Essential amino acid. Often added when plant proteins dominate, since methionine is naturally lower in pulses than meat.

  16. 16
    taurine

    Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.

  17. 17
    vitamin e supplement

    Required nutrient and a natural antioxidant. Often pulls double duty as a preservative.

  18. 18
    ascorbic acid

    Vitamin C. Pulls double duty as a natural antioxidant preservative.

  19. 19
    niacin supplement

    B vitamin (B3). Required in complete dog foods, added as a supplement to standardize the dose.

  20. 20
    vitamin a supplement

    Vitamin A in stable, standardized form. Required for vision, immune function, and growth.

  21. 21
    thiamine mononitrate

    B vitamin (B1). Essential for nervous system function. Cooked-in vitamin loss is why thiamine is always added back.

  22. 22
    d-calcium pantothenate

    B vitamin (B5). Standard inclusion in complete dog foods.

  23. 23
    riboflavin supplement

    B vitamin (B2). Required in complete dog foods. The standardized form ensures consistent dosing.

  24. 24
    pyridoxine hydrochloride

    B vitamin (B6). Essential for protein metabolism. Standard inclusion in complete formulas.

  25. 25
    vitamin b12 supplement

    Essential for red blood cell formation and neurological function. Plant ingredients lack B12, so it has to be added.

Showing first 25 of 42. Position 1-5 has the largest weight in the recipe.

25 of 25 ingredients have a curated note. Coverage grows over time.