GI Sustain™ | Metagenics® | 686 g (24.2 oz) powder



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Gastrointestinal Nutritional Support*

Source of antioxidants, amino acids, multivitamin and mineral supplement

For the maintenance of good health

GI Sustain™ is designed to provide gastrointestinal nutritional support. The formula is uniquely designed to help promote the growth of beneficial bacteria by including prebiotic nutrients, combined with readily digestible macronutrients.*

GI Sustain features L-glutamine and prebiotic isomalto-oligosaccharides (IMOs) to promote gastrointestinal health.*


  • Nourishes the cells of the intestinal mucosa*
  • Features rice pein concentrate supplemented with L-lysine and L-threonine for an naturally-derived amino acid profile*
  • Formulated with rice syrup solids as a naturally-derived energy source*
  • Features medium-chain triglycerides, a readily absorbed and metabolized lipid source*
  • Features prebiotic IMOs to selectively nourish beneficial bacteria, including lactobacilli and bifidobacteria*
  • Formulated with zinc and L-glutamine to nutritionally support gastrointestinal mucosa integrity*
  • Features methylated vitamin B12 and calcium L-5 methyltetrahydrofolate, a bioavailable folate* 


Serving size: About 2 Scoops (49 g)
Servings Per Container: 14

Ingredients Amount Per Serving % Daily Value
Serving Size About 2 Scoops (49 g)  
Servings Per Container 14  
Calories 170  
Total Fat 5 g 6%*
   Saturated Fat 1.5 g 8%*
Total Carbohydrate 24 g 13%*
   Dietary Fiber 5 g 7%*
   Total Sugars 9 g  **
  Includes 5g Added Sugars   10%*
Protein 13 g  26%*
Vitamin A (62.5% as beta-carotene)
 (as beta-carotene and retinyl palmitate)
1,200 mcg 133%
Vitamin C (as ascorbic acid) 102 mg 113%
Vitamin D (as cholecalciferol) 1.2 mcg (50 IU) 6%
Vitamin E (as d-alpha tocopheryl acetate) 33.5 mg 223%
Thiamin (as thiamin HCl) 0.5 mg 42%
Riboflavin 0.6 mg 46%
Niacin (as niacinamide) 10 mg 63%
Vitamin B6 (as pyridoxine HCl) 0.7 mg 41%
Folate (as calcium L-5-methyltetrahydrofolate) 235 mcg DFE 59%
Vitamin B12 (as methylcobalamin) 2.1 mcg 88%
Biotin 105 mcg 350%
Pantothenic Acid (as D-calcium pantothenate) 100 mg 2,000%
Calcium (as calcium citrate and dicalcium phosphate) 300 mg 23%
Iron (as ferrous fumarate) 3.6 mg 20%
Phosphorus (as dipotassium phosphate and dicalcium phosphate) 180 mg 14%
Magnesium (as magnesium citrate) 120 mg 29%
Zinc (as zinc gluconate) 7.5 mg 68%
Copper (as copper gluconate) 0.5 mg 56%
Manganese 1.3 mg 57%
Chromium (as chromium picolinate) 75 mcg 214%
Sodium 20 mg <1%
Potassium (as dipotassium phosphate) 300 mg 6%
Isomalto-oligosaccharides 3.4 g **
L-Glutamine 500 mg **
Glycine 100 mg **
DL-Methionine 100 mg **
L-Lysine (as L-lysine HCl) 35 mg **
L-Threonine 34 mg **
L-Cysteine (as L-cysteine HCl) 25 mg **

Other Ingredients

Rice protein concentrate, rice syrup solids, apple fiber, olive oil, medium-chain triglycerides, gum acacia, silica, natural flavors,†† and rice maltodextrin.


Blend, shake, or briskly stir about 2 level scoops (49 grams) of GI Sustain into 8 ounces of chilled water or juice twice daily or as directed by your healthcare practitioner. For highly sensitive individuals, consider reducing consumption to ½ to 1 scoop with 4 to 5 ounces of chilled water or juice twice daily during the first 3 to 4 days before starting a full daily dose.

This product is non-GMO and gluten-free.


 Excess vitamin A intake may increase the risk of birth defects. Pregnant women and women who may become pregnant should not exceed 3,000 mcg of preformed vitamin A (retinyl palmitate) per day unless instructed to do so by a healthcare practitioner.


Keep out of the reach of children.


Keep tightly closed in a cool, dry place. 

Tamper Evident

Do not use if safety seal is missing or broken.

Contents sold by weight, not volume. Some settling may occur during shipping and handling. Serving size is measured by weight with a scoop included for your convenience. The amount of product contained in two scoops may be above or below 49 grams due to variations in handling and product density.

*Percent Daily Values are based on a 2,000 calorie diet.
**Daily Value not established.

As Metafolin®. Metafolin® is a registered trademark of Merck KGaA, Darmstadt Germany
††No MSG.

Legal Disclaimer

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

The product information on this website may not be 100% accurate. Please ensure to check the product packaging information before consumption, especially if you have allergies or other health conditions.

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