It supports the stomach and the hindgut in one formula. The stomach is where acid breaks down feed. The hindgut is where microbes ferment forage into energy. Stress hits both, and most gut supplements only support one.

Complete Gut Protection was developed with the Four Sixes Ranch, leading equine veterinarians, and PhD equine nutritionists. It combines research-backed prebiotics, probiotics, a postbiotic, L-glutamine, and oat beta glucan to support the entire tract, from the stomach lining to the hindgut. That makes it a fit for stressful stretches like hauling, feed changes, and courses of antibiotics or NSAIDs.

Prebiotics feed the good microbes. Probiotics add more of them. Postbiotics are the beneficial compounds those microbes produce.

Prebiotics are fibers that feed the beneficial microbes in the horse's gut. In this formula, they come from oat beta glucan and yeast extract.

Probiotics are live, beneficial microorganisms, listed on the label in CFUs. This formula provides Lactobacillus reuteri, Bifidobacterium longum, and Saccharomyces boulardii CNCM I-1079 to support digestion and a normal gut immune response.

Postbiotics are the end products of microbial fermentation. Listed on the label as Saccharomyces cerevisiae Fermentation Product, this ingredient from Diamond V has extensive research supporting digestion, joint health, and muscle health.

Nearly every working horse can benefit, because training, hauling, and routine changes all put stress on the gut. Common times to feed it include:

✓ Training, hauling, and horse shows
✓ Feed changes, weaning, or a move to a new barn
✓ Layup or stall rest
✓ Senior horses
✓ Courses of antibiotics or NSAIDs

No. Omeprazole is a treatment that shuts down stomach acid while your horse is on it. We recommend feeding Complete Gut Protection during treatment and after, because many horses struggle with acid rebound once omeprazole stops, which can lead to recurring ulcers. Complete Gut Protection supports the gut through that shift, with L-glutamine and oat beta glucan for the stomach lining and prebiotics, probiotics, and a postbiotic to keep the hindgut balanced.

Each 30 g scoop provides 30 billion CFU. That is 10 billion each of S. boulardii CNCM I-1079, Lactobacillus reuteri, and Bifidobacterium longum, all listed on the label. S. boulardii is a yeast, so it holds up to stomach acid and antibiotics.

Oat beta glucan is a prebiotic fiber that supports a healthy stomach lining. L-glutamine is an amino acid that fuels the cells lining the stomach and small intestine. Together they support the gut lining through training, hauling, and routine changes.

The gut takes about seven days to adjust to any new feed or supplement. Give it about a month of daily feeding. Many owners notice changes sooner.