Gastric and Intestinal Wellness



Kentucky Equine Research

Feeding Supplements

Pro Yeast is a live yeast supplement for horses to optimize fiber and nutrient assimilation and energy utilization.

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Product Description

Pro Yeast: Live yeast to optimize fiber and nutrient assimilation and energy utilization

Pro-Yeast is a scientifically tested live yeast supplement that provides a beneficial effect through its probiotics. This supplement will help optimize fiber and nutrient digestion, improving energy utilization. It is suitable for all types of horses and ponies. It is particularly useful for performance horses because it maintains optimal microbial health by supporting and maintaining stable gut flora and pH in the hind gut.

Maintaining the health of the posterior intestine is critical; energy production through fiber fermentation occurs in this tract. To maximize energy assimilation from fiber, it is necessary to maintain the balance of microorganisms in the hind gut.

These microorganisms require an anaerobic (oxygen-free) environment with a pH of 6.5-7 to perform their activities properly. When the environment is not in ideal conditions, harmful effects on the horse’s health and performance can be found.

These problems can arise due to: high-starch diets, feeding changes, uncontrolled grazing, stressful events, and fiber deficiency.

At a pH of 5 or lower, acidosis of the posterior intestine may occur, and symptoms such as lack of appetite, colic, and stereotypic behaviors such as support ticking may arise. Sometimes no symptoms are visible even if the horse has intestinal problems.

Supporting the health of the horse’s hind gut is possible by maintaining a high-fiber diet. Often, however, competitions, travel, and other stressful events can make it difficult to maintain a balanced fiber-based eating routine.

Pro-Yeast is a digestive aid for these needs; it contains VistaCell, a live yeast that can help maintain a stable intestinal environment and can help improve fiber digestion, proving to be critical in managing the health of the hind gut.

Pro-Yeast works by balancing lactic acid-producing microorganisms that thrive in a low pH environment, reducing the additive acid load and removing oxygen from the back gut. This process makes the environment of the posterior intestine more suitable for fiber-digesting bacteria, promoting their proliferation and activity. These microorganisms are critical to horse health as they improve energy supply through the production of volatile fatty acids having a direct effect on health and performance.


  • Calcium carbonate
  • 4b1710 Saccharomyces cerevisiae MUCL 39885 (VistaCell)

Fibers 0.6%
Protein 7.0%
Oil 0.4%
Crude ash 81.2%

Calcium 32%
Phosphorus 0.16%
Sodium 0.63%
Hydration 2.6%

  • Helps maintain optimal gut microbial health, activity and function
  • Supports optimal digestion of fiber and nutrients
  • Helps and supports the maintenance of a normal intestinal environment and a stable pH
  • Contains the highest proportion of CFUs per recorded rate of progress – Number of Colony Forming Units (CFU’s) 2.5×1010 CFU’s/g (2.5 billion)
  • Any horse or pony to help maintain normal digestive efficiency
  • Performance horses that train, travel and compete
  • Horses and ponies requiring gut health support

Horses & ponies – 10 g per day

These administration recommendations are only indicative.

For any nutritional advice, please feel free to contact us.

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Additional information

Weight 1 kg

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