Gut Rebuild for Dogs

Due to robust demand, orders for this product will ship within 7-10 business days.

A groundbreaking synbiotic formulated for dogs, featuring Peptacetobacter hiranonis AB500, a proprietary probiotic strain from healthy dogs, clinically proven to restore bile acid metabolism and rebalance the gut microbiome.

Clinically proven canine probiotic: Peptacetobacter hiranonis AB500 restores gut balance and resilience.

Targets bile acid metabolism: Supports healthy digestion and strong gut defenses.

Fast-acting, comprehensive support: With S. boulardii and PreforPro® for rapid relief and lasting results.

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Species: Dog

Capsule Count
Capsule Size

Gut Rebuild for Dogs is a synbiotic microbiome therapeutic featuring Peptacetobacter hiranonis AB500, a keystone bacterial species essential to canine gut health. Peptacetobacter hiranonis AB500 converts primary to secondary intestinal bile acids, a core digestive and microbiome function that directly influences gut health, metabolism, and disease resistance. 

The synergistic blend, including Saccharomyces boulardii probiotics and PreforPro® bacteriophages, delivers rapid symptom relief while promoting the successful colonization of Peptacetobacter hiranonis AB500 for comprehensive microbiome restoration. 

Clinical Applications

  • Restoration of gut microbiome balance following antibiotic therapy
  • Support for patients with mild to moderate dysbiosis or chronic GI disturbances
  • Adjunctive therapy to Fecal Microbiota Transplantation (FMT)
  • Maintenance of bile acid metabolism in senior canine patients

Active ingredients per 2 capsules

Small (Size 4)

  • Saccharomyces boulardii CNCM I-3799 3.7 Billion CFUs
  • Peptacetobacter hiranonis AB500 400 Million AFUs
  • PreforPro® (LH01-Myoviridae, LL5-Siphoviridae, T4D-Myoviridae, LL12-Myoviridae) 5 mg

Medium (Size 2)

  • Saccharomyces boulardii CNCM I-3799 6.4 Billion CFUs
  • Peptacetobacter hiranonis AB500 700 million AFUs
  • PreforPro® (LH01-Myoviridae, LL5-Siphoviridae, T4D-Myoviridae, LL12-Myoviridae) 8.5 mg

Large (Size 0)

  • Saccharomyces boulardii CNCM I-3799 12 Billion CFUs
  • Peptacetobacter hiranonis AB500 1.3 Billion AFUs
  • PreforPro® (LH01-Myoviridae, LL5-Siphoviridae, T4D-Myoviridae, LL12-Myoviridae) 16 mg

Inactive ingredients: 

Trehalose, silicon dioxide, modified cellulose capsule

Follow the recommended number of capsules per day, based on dog’s body weight (see below).

Daily Capsule Guide (by body weight)

Small (Size 4)

  • < 10 lbs: 1 capsule/day
  • 11–20 lbs: 2 capsules/day

Medium (Size 2)

  • 21–40 lbs: 2 capsules/day

Large (Size 0)

  • 41–60 lbs: 2 capsules/day
  • 61–80 lbs: 3 capsules/day
  • 81+ lbs: 4 capsules/day

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  • Sensitive patients may start with one capsule per day and slowly transition up to the recommended daily amount of capsules per day. 
  • Capsules can be opened and powder added to food.
  • Daily capsules may be administered in a single dose or divided throughout the day.
  • For optimal therapeutic effect, continuous daily administration of Gut Rebuild is recommended for a minimum of 30 days.
  • Cold storage is recommended in humid climates.

Frequently Asked Questions

Native P. hiranonis populations are highly sensitive to antibiotics (notably metronidazole) and decline with age. Targeted supplementation helps restore and maintain normal bile acid metabolism and microbial balance. Sustained administration has been clinically proven to be associated with increased P. hiranonis abundance, enhanced bile acid conversion efficiency, and improved stool quality in dogs.

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