Hairball Control
Graded by The Sniff System
Hill's Science Diet Hairball Control is a dry food with chicken and pork liver as its primary protein sources.
This formula has undergone AAFCO feeding trials, which is a strong indicator of nutritional adequacy. It also includes organ meats like turkey giblets and pork liver, providing diverse, high-quality protein sources.
The formula contains carrageenan, a thickener some studies link to gastrointestinal inflammation. It also has guar gum, an emulsifier with emerging microbiome data, though no direct canine clinical evidence for either.
Good fit for dogs needing a high-fiber diet for digestive support. Less ideal if your dog has a sensitive stomach or IBD.
Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.
Strong fit for active large sporting breeds, including the Golden Retriever, navigating diet-associated DCM concerns. Chicken anchors position 2, with zero pulses in the top 15, plus turkey giblets at position 3 (a natural taurine precursor). In its 2022 update on diet-associated DCM, the FDA identified Golden Retrievers as the most reported breed, with 121 cases out of 1,382 total canine reports (8.8%) received between January 1, 2014, and November 1, 2022 (FDA, 2022) .
Looking at this for adult 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
MethodologyThe Sniff System grades this product against 3 cited studies relevant to its profile. Each link opens the original source.
- FDA, 2022cardiac · epidemiology · breed predisposition· cited in 5 claims
- FDA, 2019diet composition· cited in 2 claims
- NRC, 2006nutrient bioavailability
Every claim on Sniff traces to a source. If you find a citation that's wrong, outdated, or misapplied, tell us.
Sniff scored this formula 45/100, landing in C-tier (acceptable-with-notes). The biggest contributor was AAFCO compliance (+8 points): AAFCO feeding trial substantiation for not stated. The biggest detractor was controversial-ingredient penalty (-5 points): Contains carrageenan. Plausible rodent colitis mechanism, no direct canine clinical evidence at food-grade levels. Concern elevated for dogs with IBD.
AAFCO feeding trial substantiation for not stated.
Includes egg, named fish, or organ meat for diverse high-bioavailability protein.
Contains carrageenan. Plausible rodent colitis mechanism, no direct canine clinical evidence at food-grade levels. Concern elevated for dogs with IBD..
Contains guar gum. Emerging microbiome data on emulsifiers; no canine clinical evidence. Minor penalty in canned food..
- Lowest overall Sniff Score in Hill's Science Diet's lineup (45/100)
- Bottom 10% for protein quality in Hill's Science Diet's lineup (13.6/27)
- Bottom 10% for carb quality in grain-inclusive dry kibbles (10/16)
Computed against the rest of our catalog. Percentiles refresh on each catalog update.
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Controversial ingredients · 1
- carrageenanSeaweed-derived thickener; some studies link it to gastrointestinal inflammation. Most common in wet foods but appears in some kibble gravies.
Every flagged ingredient has a published basis (confirmed harm / regulatory action / precautionary). See methodology →
Read why each ingredient is good or bad for dogs.
- 1water
Just water. Counted on the label of any wet or fresh food. The number tells you the moisture content.
- 2protein animalchicken
Real meat. Primary protein source, with the amino acid profile dogs actually evolved to eat.
Position 2: co-primary protein. Two named animal proteins in the top 2 is a strong protein build.
- 3turkey giblets
Position 3. Named organ meat this high is a strong build choice. Concentrated source of taurine, glutamine, and B-vitamins.
- 4pork by-products
Generic pork organs and tissue without species-specific traceability. Named by-products are more transparent.
Position 4: significant protein contributor. Adds amino-acid diversity to the top of the deck.
- 5protein animalpork liver
Organ meat. Dense in B vitamins, iron, and vitamin A. Among the most nutritious ingredients on any label.
Position 5. Named organ meat this high is a strong build choice. Concentrated source of taurine, glutamine, and B-vitamins.
- 6fiberpowdered cellulose
Plant fiber, often from wood pulp. Cheap bulk filler. Not harmful, but a tell that the recipe is reaching for inexpensive bulk.
Position 6: functional fiber for digestion or satiety.
- 7corn starch
Position 7: supporting grain. Smaller contribution to the carb deck.
- 8protein plantcorn gluten meal
Concentrated corn protein. Inflates the protein percent on the label without matching meat-quality amino acids.
Position 8: moderate plant-protein boost. Less likely to materially shift the protein profile.
- 9wheat flour
Refined wheat, usually used as a binder. Cheap, not harmful, not a nutrition contributor.
Position 9: minor grain inclusion.
- 10fatchicken fat
Despite the name, a high-quality energy source. Concentrated calories plus essential fatty acids like linoleic acid. See why →
Position 10: trace fat. Below the level that materially shifts the fat profile.
- 11soybean oil
Plant oil. High in omega-6, which is required but commonly oversupplied. Fine in moderation.
Position 11: trace fat. Below the level that materially shifts the fat profile.
- 12chicken liver flavor
Hydrolyzed chicken liver used as a flavor enhancer. Real ingredient, used in tiny amounts for palatability.
Position 12. Small organ inclusion. Functional but not a primary contributor to the protein profile.
- 13othernatural flavor
Legal term for animal-derived flavoring, usually hydrolyzed liver or broth. Adds taste, says nothing about quality.
- 14mineraldicalcium phosphate
Calcium and phosphorus combined. Required source of both minerals, especially in formulas without much bone content.
- 15brewers dried yeast
Yeast left over from brewing. Rich in B vitamins and amino acids. A traditional and well-tolerated inclusion.
- 16fiberguar gum
Thickener common in wet food. Emerging research on emulsifiers and the gut microbiome, but no smoking gun in dogs yet. See why →
- 17mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 18mineralsalt
Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.
- 19supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 20fiberlocust bean gum
Thickener from carob seed. Generally well-tolerated. Less controversial than carrageenan or guar gum.
- 21othercarrageenan Flagged
Seaweed-derived thickener. Some lab studies suggest gut inflammation, but the evidence in pets is mixed. See why →
- 22supplementtaurine
Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.
- 23mineralcalcium carbonate
Source of calcium. Functional. Required in complete dog foods, especially those without bone-in meat meals.
- 24zinc oxide
Inorganic zinc. Cheapest mineral form on the market. Functional but less bioavailable than chelated alternatives.
- 25mineralferrous sulfate
Inorganic iron. Standard mineral source. Iron proteinate is the gentler, better-absorbed premium form.
Showing first 25 of 32. Position 1-5 has the largest weight in the recipe.
23 of 25 ingredients have a curated note. Coverage grows over time.