Gastro-Plex (Pellets) – FREE SHIPPING on MVP




GASTRO-PLEX™ is recommended to help support healthy digestive function. Key ingredients (antioxidants, probiotics and herbals), help support healthy stomach tissue lining plus Levucell® SC, a powerful yeast that helps reduce the risk of colic/digestive disorders by supporting the hindgut:

  • Offsets negative impact of high starch diets
  • Improves fiber digestion in the hind gut
  • Provides direct source of nutrients to nourish good bacteria
  • Stabilizes digestive flora during periods of stress for overall health and performance

*Levucell® SC is clinically researched and a registered trademark of Lallemand Specialties, Inc. (France)


  Basic management to prevent G.I. discomfort:
  •    Free choice hay 24/7
  •    Plenty of water
  •    Feeding 1 oz of salt twice daily
  •    Avoid high intake of starchy concentrated grains
  •    Restore microbial balance with a quality probiotic/prebiotic

I do not offer MVP Products outside of the continental US.

I invite my Canadian friends to place orders with a US address for delivery.




(Enclosed measure approximates 1.5 oz based on density of product.)

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Adult Horses (900-1,100 lbs): Provide 1.5 oz daily.


Hydrolyzed Gelatin (Collagen) – A type of protein derived from collagen. Similarly to collagen, gelatin is beneficial for supporting a healthy gut. Gelatin is capable of absorbing water and fluids, which helps prevent fluid retention and bloating.

Licorice is one of the most widely used herbs for people and animals in both Western and Chinese
medicine. Sweet and soothing, supports a normal inflammatory response, healing and gastric
health. The deglycyrrhized form is preferred because it does not have the side effects of the plant as a whole.

Slippery Elm is obtained from the bark of a tree native to North America. Slippery Elm is rich in
mucilage, a soluble fiber that becomes gel-like when wet. This “natural bandage” helps coat/soothe the mucosal membrane.

L-Glutamine is the most abundant amino acid in the body, especially in muscle tissue. Although it
is not an essential amino acid, there is such great demand for its use in the body that production
may not be able to keep up with consumption, so supplementing may be necessary. Glutamine is
involved in more metabolic processes than any other amino acid, helps support a normal inflammatory response within the GI Tract.

Mannanoligosaccharides (MOS) is part of the yeast cell wall and helps clear the horse’s hind gut of pathogens and aids in immune system health. MOS binds to harmful pathogens like E. coli and salmonella, preventing these from binding to the horse’s intestine and causing infection. When the MOS is flushed from the horse’s body in manure, it takes the infective agents with it. MOS also stimulates the horse’s immune system by evoking an antibody response against the invading pathogen, building the horse’s natural defenses.

Ester-C® (calcium ascorbate) is a unique patented ascorbate complex bound with calcium carbonate. Ester- C® is naturally processed in purified water without the use of alcohol or acetone solvents. This makes Ester-C® a more readily available, readily absorbed form of vitamin C. Vitamin C is an antioxidant that helps protect the tissues of the body and also important in the production of connective tissues like tendons and ligamnets.   Ester-C® has up to 4X more metabolic activity than standard vitamin C (ascorbic acid).

Zinc (Zn) is a micromineral involved in over 100 enzyme systems ranging from support of connective tissue formation and antioxidants
to carbohydrate metabolism and immune system function. It is most recognized for its role in healthy skin
and hooves. Supplementation should be considered because amounts in normal feedstuffs may not meet requirements.

Manganese (Mn) is a micromineral essential for bone formation, growth and reproduction. It is also essential in carbohydrate and fat metabolism. Supplementation should be considered because not all diets provide the same levels of manganese. It is among the least toxic of the trace minerals, and it plays an important role in young growing horses as well as active performance horses.

Copper (Cu) is a micromineral required for production of normal connective tissues including tendons, ligaments, cartilage and bone. As a component of many enzyme systems, it is also involved in making iron available to the body for blood, in producing skin and coat pigments, in proper nerve signaling and in repairing antioxidants. Low copper levels in mares and foals have been implicated in developmental orthopedic disease (DOD) including osteochondrosis OCD).

Vitamin A is well known for its role in maintaining healthy vision, especially night vision. However, it is also needed for reproduction, immunity, and normal skeletal development in young growing horses and exercising horses that are remodeling bone. Horses must satisfy their vitamin A requirement from their diet, but only horses on fresh green pasture or high-quality alfalfa are likely to meet that requirement. Horses on grass hay, horses with no access to pasture, or horses that are exercising or breeding probably need supplementation.

Vitamin E (Tocopherals) is considered the most important antioxidant and works closely with selenium to protect the body from the oxidative stress of exercise, illness and certain medical conditions. Found in high amounts in fresh pasture, levels begin to decay the moment pasture is cut for hay. That is why any horse that does not have access to grass, regardless of its activity level or health, should receive vitamin E supplementation. Horses are not very efficient in storing vitamin E and deficiency may be accelerated if the diet is deficient in selenium. Synthetic vitamin E is bioavailable but studies show that natural vitamin E may be up to 21 ⁄2 times more bioavailable than synthetics.

Active Dry Yeast:  Supports enzyme activity for fiber digestion in the hind gut and provides a direct source of nutrients to nourish good bacteria.  Stabilizes digestive flora during periods of stress for overall health and performance.

Probiotics are live microorganisms fed to promote healthy digestive and immune function. When these “good” bugs break down food ingredients that the body normally can’t, they produce energy and vitamins for the body, food for cells in the cecum and colon, and byproducts that keep the “bad” bugs from growing. Research suggests probiotics are useful in repopulating the intestine with “good” bugs after antibiotic use and may benefit certain horses with diarrhea. A common term used for probiotics is direct-fed microbials (DFM).

Additional information

Select Size

Gastro-Plex Pellets – 3 lbs., Gastro-Plex Pellets – 6 lbs., Gastro-Plex Pellets – 12 lbs., Gastro-Plex Pellets – 24 lbs., Gastro-Plex Pellets – 50 lbs.



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