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Royal Canin Veterinary Diet Adult Gastrointestinal High Fiber Dry Dog Food, 17.6-lb bag
Royal Canin Veterinary Diet

Adult Gastrointestinal High Fiber Dry Dog Food, 17.6-lb bag

Evidence Fair
AAFCO compliance inferred from product name
dry $5.97/lb

Graded by The Sniff System

In plain English

Royal Canin Veterinary Diet Adult Gastrointestinal High Fiber Dry Dog Food is a dry formula for adult maintenance, with chicken by-product meal as its primary protein.

This food uses quality fat sources, including named fats with marine oil for EPA and DHA. It also includes premium micronutrient forms like chelated minerals. The formula has AAFCO feeding trial substantiation for adult maintenance.

The main thing to watch is the protein quality. Chicken by-product meal, while a protein source, delivers limited bioavailable amino acids compared to whole muscle meat.

Good fit for adult dogs needing a high-fiber diet, likely under veterinary guidance. Less ideal if you prefer formulas with higher quality, more bioavailable protein sources.

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

Who this is for

Strong fit for adult Labrador Retrievers and similar active sporting breeds navigating weight management. At 287 kcal/cup this formula runs on the lean side, with crude fiber at 7.9% (above the catalog median, supports satiety). The landmark 14-year Purina Lifespan Study on 48 Labrador Retrievers demonstrated that dogs fed 25% fewer calories lived a median of 1.8 years longer and delayed the onset of chronic diseases. The 2014 AAHA Weight Management Guidelines define overweight as a Body Condition Score (BCS) of 6-7 on a 9-point scale. A score of 8 or 9 indicates obesity, representing 20-30% and >30% above ideal body weight, respectively  (Brooks et al., 2014) .

Looking at this for adult Labrador Retrievers or Labrador Retrievers with weight management ? 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 3 cited studies relevant to its profile. Each link opens the original source.

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 If you find a citation that's wrong, outdated, or misapplied, tell us.

Why this score

Sniff scored this formula 62/100, landing in B-tier territory. The biggest contributor was fat quality (+12 points): Quality fat sources: named fat with marine oil (EPA and DHA source). The biggest detractor was protein quality (-16.5 points): Low protein quality. chicken by-product meal delivers limited bioavailable amino acids.

What lifted the score

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

FQI

AAFCO feeding trial substantiation for adult maintenance.

ACF

Premium micronutrient forms such as chelated minerals or natural vitamin E.

MNI
What pulled it down

Low protein quality. chicken by-product meal delivers limited bioavailable amino acids.

PQI
What sets this apart
  • Bottom 2% for fat quality in Royal Canin Veterinary Diet's lineup (12/16)
  • Top 10% for overall Sniff Score in Royal Canin Veterinary Diet's lineup (62/100)
  • Bottom 5% for carb quality in Royal Canin Veterinary Diet's lineup (10/16)

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: 23%
Protein
21%
min (as fed)
Fat
14%
min (as fed)
Fiber
7.9%
max (as fed)
Moisture
10.5%
max
Ingredients

Read why each ingredient is good or bad for dogs.

38 total
Good Neutral Watch Flagged
  1. 1
    chicken by-product meal

    Ground organs, bone, and tissue. Nutritionally dense, especially the liver and gizzard fractions. Named species ('chicken') is what matters. Generic 'poultry by-product meal' is the one to worry about. See why →

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

  2. 2
    brewers rice

    Broken rice kernels left over from milling, usually destined for human beer-making. Cheaper than whole or even white rice. Same carbs, less nutrition than the brown version. See why →

    Position 2: major carbohydrate source.

  3. 3
    pea fiber

    Insoluble fiber from peas. Doesn't carry the protein-inflation concern of pea protein. Mostly there for stool quality.

    Position 3. Pulse-family ingredient this high in the deck is a notable build choice. When stacked with other pulses in the top 10, matches the formulation pattern the FDA flagged in its diet-associated DCM investigation.

  4. 4
    chicken fat

    Despite the name, a high-quality energy source. Concentrated calories plus essential fatty acids like linoleic acid. See why →

    Position 4: secondary fat. Often where marine oils sit when present alongside a primary land-animal fat.

  5. 5
    wheat

    Whole wheat. Fine for most dogs, though a portion are sensitive. Not a quality concern, just a fit-for-your-dog question.

    Position 5: supporting grain. Smaller contribution to the carb deck.

  6. 6
    corn

    Whole corn is more nutritious than it gets credit for, with decent amino acids and steady carbs. The bigger concern is when corn dominates the top of the ingredient list at the expense of named meat.

    Position 6: supporting grain. Smaller contribution to the carb deck.

  7. 7
    powdered cellulose

    Plant fiber, often from wood pulp. Cheap bulk filler. Not harmful, but a tell that the recipe is reaching for inexpensive bulk.

    Position 7: functional fiber for digestion or satiety.

  8. 8
    natural flavors

    Same as natural flavor. Usually hydrolyzed liver or broth, adds palatability.

  9. 9
    wheat gluten

    Concentrated wheat protein. Like other plant gluten meals, it pads the protein number on the label without contributing meat-quality amino acids.

    Position 9: moderate plant-protein boost. Less likely to materially shift the protein profile.

  10. 10
    corn protein meal

    Concentrated corn protein. Similar in role to corn gluten meal, pads the protein number on the label without matching meat amino acids.

    Position 10: minor grain inclusion.

  11. 11
    dried plain beet pulp

    Beet fiber, with the sugar removed. Long unfairly maligned. It's a real soluble fiber that supports stool quality. See why →

    Position 11: trace fiber inclusion.

  12. 12
    vegetable oil

    Unnamed plant oil. Could be soy, canola, corn, or a blend. Named oils like sunflower or canola are more transparent.

    Position 12: trace fat. Below the level that materially shifts the fat profile.

  13. 13
    powdered psyllium seed husk

    Position 13: trace fiber inclusion.

  14. 14
    sodium aluminosilicate

    Anti-caking agent that keeps powder ingredients flowing. Functional, not nutritional.

  15. 15
    potassium chloride

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

  16. 16
    salt

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

  17. 17
    fish oil

    Concentrated omega-3s. The reason 'EPA' and 'DHA' get to show up on the bag.

  18. 18
    calcium carbonate

    Source of calcium. Functional. Required in complete dog foods, especially those without bone-in meat meals.

  19. 19
    monocalcium phosphate

    Source of calcium and phosphorus. Standard mineral inclusion in complete dog foods.

  20. 20
    fructooligosaccharides

    Prebiotic fiber, often called FOS. Feeds beneficial gut bacteria, similar in function to inulin.

  21. 21
    dl-methionine

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

  22. 22
    marine microalgae oil

    Plant-source omega-3 from algae. Useful especially in vegetarian or limited-fish formulas.

  23. 23
    hydrolyzed yeast

    Yeast broken down with enzymes. Strong palatant plus a real source of B vitamins and amino acids.

  24. 24
    choline chloride

    Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.

  25. 25
    l-lysine

    Essential amino acid. Plant-protein-heavy formulas sometimes add it to round out the amino acid profile.

Showing first 25 of 38. Position 1-5 has the largest weight in the recipe.

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