How AI Search Is Recommending Pet Health Supplements and Wellness: Monthly Trends

Executive Summary

Zesty Paws remains the category leader in September 2026 at 67.5% valid recommendation coverage, but that position is no longer stable. The brand declined 7.2 points from July's 74.7% baseline, a significant move outside normal month-to-month variation, and it declined again from August's 72.3%. VetriScience (FoodScience LLC) holds second at 53.3%, down 1.4 points from baseline but still 14.2 points behind the leader.

The sharpest story this month is the compression of the middle tier, driven by two significant movements. NaturVet rose 6.4 points from 23.5% in July to 29.9% in September, the category's only significant riser, and has now climbed for two consecutive months. Native Pet fell 14.7 points from 43.6% to 28.9% over the same span, a significant decline that has now run for two months, and Zesty Paws also registered a significant decline over the full period even though its month-over-month drop from August was within normal variation.

The competitive consequence is a fundamentally rearranged field. Native Pet entered the series with a 20.1-point lead over NaturVet in July; by September, NaturVet leads Native Pet by 1.0 point. Native Pet, NaturVet, and Nutramax Laboratories are now separated by less than 2 points, where Native Pet once held a clear third-place position at 43.6%. The category is no longer a clear leader-plus-field structure.

Each monthly run begins with 800 prompt-surface observations (569 unique questions in September, versus 522 in July) across the benchmark's defined AI/search surface universe. All 800 mentioned a tracked brand or competitor in both months; 786 were relevant and 14 were irrelevant in September, matching July's 786 relevant and 14 irrelevant. The public metrics use the 582 qualified observations in September (605 in July) that survived both qualification stages.

Key Findings

Benchmark Context

The report separates the raw collection universe from the qualified analysis set. Brand-level recommendation percentages are calculated within the qualified benchmark set.

The qualified observation count declined from 605 to 582 across the series while unique questions rose from 522 to 569, meaning the benchmark analyzed a broader question set through a somewhat narrower qualified lens in September. August sat between these points with 589 qualified observations and 572 unique questions, after 27 prompts were judged irrelevant that month.

Benchmark-Level Metrics

Recommendation-shaped answer share declined from 69.3% to 59.8% across the series, and valid recommendation shortlist share fell from 86.9% to 82.6%. August's 65.4% recommendation-shaped share and 87.1% shortlist share show the September shift is a continuation of a softening trend in how often AI answers took an explicitly recommendation-oriented form.

AI Recommendation Trend

The Category Has Reconverged Around Zesty Paws and VetriScience (FoodScience LLC) at the Top, With a Packed Middle Tier Below

Zesty Paws remains the leader at 67.5% valid recommendation coverage, down 7.2 points from July's 74.7%, and VetriScience (FoodScience LLC) holds second at 53.3%, essentially flat against its 54.7% baseline. The competitive rearrangement has happened beneath them: Native Pet's significant decline and NaturVet's significant rise have compressed the third through fifth positions into a single-digit band.

Three brands moved outside normal month-to-month variation across the full series: NaturVet rose significantly, while Native Pet and Zesty Paws declined significantly. The remaining movements were individually modest, but Nutramax Laboratories' gradual decline from 33.9% to 30.1%, VetriScience (FoodScience LLC)'s essentially flat position near 54%, and the small gains from Honest Paws combined to reshape the competitive structure as much as the headline movers did.

What Changed This Month

Zesty Paws: The Leader Declined Significantly Across the Series

Zesty Paws' valid recommendation coverage fell from 74.7% in July to 67.5% in September, a 7.2-point decline over the full series that falls outside normal month-to-month variation. The month-over-month move from August's 72.3% was more moderate at 4.8 points, within normal variation, but the two-month decline is the pattern that matters.

The brand remained highly present: raw mention presence held at 80.8% in September against an 82.3% baseline, a modest 1.5-point decline. Top-three recommendation rate eased only 1.8 points from 54.4% to 52.6%, and rank-one rate slipped 1.6 points from 21.5% to 19.9%, neither outside normal variation.

In absolute terms, Zesty Paws appeared in 393 valid recommendation responses in September, down from 452 in July, with rank-one count falling from 130 to 116. The brand is still the category's default reference, but it is being recommended in fewer responses overall while its presence holds near 81%, suggesting the change is in recommendation behavior rather than simple visibility.

Highest-priority diagnostic: Which prompt categories are no longer yielding a Zesty Paws recommendation despite the brand remaining present in those answers?

VetriScience (FoodScience LLC): Second Position Holds as Top-Recommendation Rate Rises

VetriScience (FoodScience LLC) held essentially flat at 53.3% valid recommendation coverage in September against a 54.7% baseline, a 1.4-point decline within normal variation. Its position relative to Zesty Paws narrowed from a 20.0-point July gap to 14.2 points in September.

The notable movement is in rank-one recommendations, which rose from 13.9% in July to 19.8% in September, a 5.9-point increase that falls outside normal variation. In absolute terms, the brand was the first recommendation in 115 responses in September, up from 84 in July. The August figure was 111, meaning the rank-one gain continued into the current month.

Raw mention presence rose from 58.2% to 63.6% across the series, up 5.4 points, and top-three rate rose from 39.8% to 42.3%. VetriScience (FoodScience LLC) is appearing more often and being selected as the top recommendation more often, even though its overall coverage held roughly steady because the qualified observation count shrank.

Highest-priority diagnostic: Which prompt types are now yielding VetriScience (FoodScience LLC) as the first recommendation, and what evidence sources are driving those top placements?

NaturVet: The Category's One Significant Riser

NaturVet rose from 23.5% to 29.9% valid recommendation coverage across the series, a 6.4-point gain that falls outside normal month-to-month variation and marks the category's only significant rise. The move continued a two-month upward streak that began with a 4.8-point gain from July to August.

The gain was supported across multiple signals: raw mention presence rose from 29.9% to 37.5%, up 7.6 points and significant, and top-three recommendation rate rose from 11.7% to 18.0%, a 6.3-point significant increase. In absolute terms, NaturVet's valid recommendation count rose from 142 in July to 174 in September, with top-three count rising from 71 to 105.

Rank-one rate did not follow: it eased from 2.5% to 2.1%, with 12 rank-one placements in September versus 15 in July. NaturVet is appearing in recommendation shortlists and the top three more often, but it is not becoming the default first choice. The brand is rising as a strong alternative, not as the primary answer.

Highest-priority diagnostic: Which prompt categories drove the increased top-three placements, and what evidence sources are now favoring the brand in those answers?

Native Pet: A Two-Month Significant Decline Reshapes Its Position

Native Pet fell from 43.6% in July to 28.9% in September valid recommendation coverage, a 14.7-point decline across the series and the largest movement in the category. The decline continued from August's 35.3%, a 6.4-point further drop that was itself significant relative to the prior month.

The supporting signals show a broad retreat. Raw mention presence fell from 47.3% to 34.5%, down 12.8 points and significant. Top-three recommendation rate fell from 29.9% to 19.8%, a 10.1-point significant decline. Rank-one rate eased from 5.0% to 2.9%, a 2.1-point decline within normal variation.

In absolute terms, Native Pet appeared in 168 valid recommendation responses in September versus 264 in July, with rank-one count falling from 30 to 17. Sentiment stayed strongly positive at 0.91 net sentiment score. The benchmark records that Native Pet is being recommended less often across presence, top-three, and rank-one measures; it does not establish why.

Highest-priority diagnostic: Which prompts is Native Pet losing, and which brands are now taking the recommendation in those answers?

Buyer-Intent Interpretation

In July, August, and September, every qualified observation fell into the Brand Recommendation cluster; there were no qualified observations in the Pricing & Value or Multi-Brand Comparison clusters in any month. The public benchmark can describe which brands AI systems recommend, but it cannot yet answer commercial questions about price positioning, value perception, or direct head-to-head comparisons. AI systems in this category are predominantly answering "what should I buy" rather than "how does A compare to B" or "which is the better value."

Brand Opportunity Summary

The benchmark identifies where attention is warranted; a company-level analysis is needed to explain why.

Evidence Behind the Benchmark

The aggregate metrics are built from prompt-level observations: query, surface, recommendation outcome, rank, sentiment, and citations where exposed. Company-level analysis can go deeper into prompt, competitor, surface, and evidence patterns. Source presence is not automatically treated as proof of causation.

About This Benchmark

This report is part of the LLM Authority Index AI Market Discovery research program.

• AI Industry Market Discovery Methodology
• AI Industry Market Discovery Metrics
• AI Industry Market Discovery Standards

Report-Specific Interpretation Notes

• Small-count movement is a factor for Solid Gold Pet, where 5 valid recommendations in September (down from 11) means a single prompt can move the percentage materially.
• The qualified denominator (582 observations) is narrower than the raw collection (800 prompts), and brand percentages are calculated only within the qualified set.
• This benchmark identifies movements worth investigating; it does not establish their cause. Native Pet's and Zesty Paws' declines are real, but the data here does not say why they happened.

Next Step

The Public Benchmark Shows Where a Brand Is Winning or Losing. A Company-Level Audit Shows Why.

Beneath the aggregate percentages sit the questions that matter for strategy: which high-intent prompts a brand is winning or losing, which competitor takes the recommendation when a brand loses ground, what attributes AI systems associate with each option, and which external sources shape those answers. Knowing that Native Pet fell 14.7 points across the series is useful; knowing which prompts drove that decline and which competitors absorbed those recommendations is what enables action.

A company-specific AI visibility audit maps those prompt, surface, competitor, ranking, sentiment, and evidence-source patterns into a prioritized visibility strategy. The benchmark shows where attention is warranted; the audit explains why and what to do about it.

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