Optimum GI
Optimum GIOptimum GIOptimum GIOptimum GI
$ 165.00
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Multivitamin & Mineral with Gastrointestinal Support


The health of a horse’s gastrointestinal tract is essential for wellbeing and performance, and plays a major role in immune system functions. In fact, many veterinarians consider the gut to be the seat of the immune system. 


Optimum GI provides gastrointestinal and ulcer support with vitamins, antioxidants, minerals, essential fatty acids, and highly digestible protein for whole horse health. 


Optimum GI supports a horse's sensitive mucosa without interfering with normal digestive activity.



"Three years ago, I bought an Oldenburg dressage horse called Diamond. He was my dream horse, until he began having explosive diarrhea that affected his performance.  After extensive veterinary exams, it turned out he had colonic ulcers--an exacerbation of the hind gut that doesn’t allow him to process his food correctly.  I worked with the vet using sucralfate and misoprostal, which did help the diarrhea, but it would return as soon as the course of medicine was over.  We suffered this malady for 2 1/2 years until I called Tigger at BioStar who had helped me in the past.  We tried several things like different diets, including chaffhaye, which only make things worse, and all kinds of hay pellets.  Finally we tried cold pressed hemp seed oil and Optimum GI for the gut.  Diamond now has normal stools and is training beautifully. Thanks to Tigger and her perseverance, I now have a fabulous FEI dressage horse.  Thanks BioStar!" - Katrina Oosting


Key benefits of Optimum GI™: 

• Our proteinated macro and micro-minerals are highly bioavailable, so your horse can actually use them. 

• Vitamin D2 sourced from mushrooms promotes the absorption of calcium, regulates bone growth and plays a role in immune function. 

• Beta-carotene from organic carrots supports healthy skin and mucus membranes. 

• Amino Acids from undenatured whey protein for muscle support. 

• Pumpkin meal helps support a healthy topline. 

• Reed sedge peat includes fulvic and humic acids to assist in mineral absorption and support beneficial colonies of microorganisms in the gut. 

• Apple pectin (pharmaceutical grade) - helps stabilize mucous in the glandular region of the stomach. 

• Sunflower lecithin (non GMO) supports membrane barriers of the gastrointestinal mucosa. 

• Cabbage provides L-glutamine, which may help boost immune cell activity in the gut. 

• Lion’s Mane (Hericium erinaceus) provides polysaccharides (with beta-D-glucans) for immune support and may assist in reducing gastric damage. 

Non-structural Carbohydrates: 14.5%


Optimum GI is not sourced from coal tar derivatives, petroleum extracts, acetone, or hexane. It is also not sourced from mineral carbonates or mineral oxides.

Directions for Use: 

Scoop included = 49g 

• Horses in training or hard work: 1 scoop twice per day. 

• Horses in light work: 1 scoop once per day.


Active Ingredients per 2 Scoops (98g)

Apple Pectin .................................................... 27,244 mg 

Sunflower Lecithin (non-GMO) ................... 12,440 mg 

Mineral Proteinate Complex ........................ 11,900 mg 

      Silicon Proteinate .................... 900mg 

      Calcium Proteinate ................. 600mg 

      Phosphorus Proteinate .......... 300mg 

      Magnesium Proteinate ........... 300mg 

      Zinc Proteinate ........................... 75mg 

      Manganese Proteinate .............. 63mg 

      Copper Proteinate .................. 11.3mg 

      Boron Proteinate ..................... 0.02mg 

Reed Sedge Peat ............................................... 8140 mg 

Chia Seeds ......................................................... 6650 mg 

Spirulina (Organic) ............................................ 5928 mg 

Carrot Powder (Organic) ................................. 5061 mg 

Coconut Meal .....................................................4638 mg 

Undenatured Whey Protein ........................... 3004 mg 

Lion's Mane Mushroom ................................... 2660 mg 

Dehydrated Cabbage ....................................... 2122 mg 

Pumpkin Seed Meal ......................................... 1970 mg 

Fennel ...................................................................1852 mg 

Agaricus bisporus Mushroom ............................ 222 mg 

         With Vitamin D2 .......... 800 IU (20.0 mcg) 


Inactive Ingredients: MCT Coconut Oil, Cellulose.

Non-Structural Carbohydrates:
13.7% WSC (Includes 9.6% ESC) + .7% Starch = 14.5%


60 Billion CFU's active live probiotics per serving.


Countries of Origin

Mineral Proteinate Complex - USA 

Organic Spirulina - India/China 

Chia Seeds - Ecuador/Bolivia 

Organic Carrot Powder - USA 

Pumpkin Seed Meal - USA 

Sea Salt - Europe 

Reed Sedge Peat - USA 

Fennel - India 

Undenatured Whey Protein - Canada 

Vitamin D Mushroom Powder - USA 

Coconut Meal - Indonesia 

MCT Coconut Oil - Indonesia/Malaysia 

Dehydrated Cabbage - Germany 

Apple Pectin - Canada 

Cellulose - CanadaSunflower 

Lecithin (non-GMO) - Europe 

Lions Mane Mushroom - China.

Product Analysis

Per 98 g


Crude Protein (min) 

Crude Fat (min)   

Crude Fiber (max)   

Moisture (max)   

Calcium (min)  

Calcium (max) 

Phosphorus (min)

Phosphorus (max)

Magnesium (min)

Magnesium (max)

Manganese (min)

Potassium (min)  

Copper (min)  

Sodium (min)  

Sodium (max)  

Selenium (min)  

Iron (min)  

Zinc (min)  

Boron (min)  

Silicon (min)  

Vitamin A (min) 


Vitamin D (min)  



32.9% (24346 mg)

8.13% (6016.2 mg)

8.02% (6452.8 mg)

8.05% (5957 mg)

1.06% (784.4 mg)

1.15% (851 mg)

0.87% (643.8 mg) 

0.95% (703 mg) 

0.57% (421.8mg)

0.62% (458.8mg)

1062 ppm (63mg)

1.05% (777mg)

131ppm (11.25mg)

3.02% (2234.8mg)

3.28% (2427.2mg)

6.75 ppm (0.50mg)

309 ppm (22.9mg)

717 ppm (53.1mg)

0.40 ppm (.025mg)

1.41% (900mg)

2650 mcg 

from beta carotene 

800 IU(20mcg) 

from mushrooms

Amino Acids: Glutamine (min): 5.05%, Aspartic Acid (min): 3.03%, Alanine (min): 1.78%, Arginine (min): 2.45%, Threonine (min): 1.05%, Tyrosine (min): 1.31%, Valine (min): 1.76%, Lysine (min): 1.58%, Leucine (min): 2.52%, Isoleucine (min): 1.53%, Phenylalanine (min): 1.46%, Glycine (min): 1.39%, Serine (min): 1.48%, Proline (min): 1.33%, Histidine (min): 0.69%, Tryptophan (min): 0.44%, Methionine (min): 0.62%, Cystine (min): 0.49%

  • No Preservatives

  • No fillers or binders

  • No Added Flavorings

  • Wheat Free

  • Soy Free

  • Raw

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