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 Metagenics GI Sustain

GI Sustain

Leaky Gut Syndrome

14 servings

$74.95 Click to Purchase


Medical Food Formula for those with Leaky Gut Syndrome*

GI Sustain is a medical food formulated to provide specialized nutritional support, including amino acids and prebiotic fiber combined with readily digestible, low-allergenic-potential macronutrients for patients with leaky gut syndrome.  Featuring L-glutamine and isomalto-oligosaccharides (IMO), this formula supports intestinal mucosal integrity and promotes the growth of beneficial bacteria to address dysbiosis associated with leaky gut syndrome.

  • Supports microbial balance.
  • Nourishes the cells of the colonic mucosa.
  • Features low-allergy-potential rice protein concentrate supplemented with L-lysine HCL and L-threonine for an improved protein source.
  • Provides rice syrup solids as a natural energy source.
  • Provides a readily absorbed and metabolized lipid source.
  • Provides the prebiotic IMO to selectively nourish beneficial bacteria, including lactobacillus and bifidobacteria.
  • IMO is a gentle fiber that is naturally sweet but has a low-glycemic index.
  • Formulated with nutrients such as zinc gluconate and L-glutamine to nutritionally support gastrointestinal mucosa integrity.

Recommendations: Blend, shake, or briskly stir two level scoops (60 grams) of GI Sustain into eight fluid ounces of chilled water or juice twice daily, or as directed by your healthcare practitioner. For highly sensitive individuals, consider reducing consumption to 1/2 to 1 scoop with 4 to 5 ounces of chilled water or juice during the first 3 to 4 days before starting a full daily dose. Serving Size: 2 Scoops (60 g)


Calories   220
Fat   5 g
Saturated Fat† 
 1.5 g
Trans Fat 
 0 g
Cholesterol   0 mg
Sodium   20 mg
Potassium (as dipotassium phosphate)   300 mg
Carbohydrate   32 g
Dietary Fiber 
 3 g
 10 g
Protein   15 g
Vitamin A (as retinyl palmitate)   1,500 IU
Vitamin A (as beta-carotene)   2,500 IU
Vitamin C (as ascorbic acid)   102 mg
Calcium (as calcium citrate and dicalcium phosphate)   300 mg
Iron (as ferrous fumarate)   3.6 mg
Vitamin D (as cholecalciferol)   50 IU
Vitamin E (as d-alpha tocopheryl acetate)   50 IU
Thiamin (as thiamin HCl)   0.525 mg
Riboflavin   0.595 mg
Niacin (as niacinamide)   7 mg
Vitamin B6 (as pyridoxine hydrochloride)   0.7 mg
Folate (as folic acid)   140 mcg
Vitamin B12 (as cyanocobalamin)   2.1 mcg
Biotin   105 mcg
Pantothenic Acid (as D-calcium pantothenate)   100 mg
Phosphorus (as dipotassium phosphate and dicalcium phosphate)   175 mg
Magnesium (as magnesium citrate)   121 mg
Zinc (as zinc gluconate)   7.5 mg
Copper (as copper gluconate)   0.5 mg
Manganese   1.3 mg
Chromium (as chromium polynicotinate††)   75 mcg
L-Glycine   100 mg
L-Glutamine   500 mg
L-Cysteine (as L-Cysteine HCl)   25 mg
L-Lysine (as L-Lysine HCl)   35 mg
L-Threonine   34 mg
DL-Methionine   100 mg
Blend of: Fructooligosaccharides and Inulin   3 g
Ingredients: Rice protein concentrate, rice syrup solids, rice flour, isomaltooligosaccharides, olive oil, magnesium citrate, calcium citrate, medium chain triglycerides, natural flavors, dipotassium phosphate, L-glutamine, silica, D-calcium pantothenate, dicalcium phosphate, ascorbic acid, DL-Methionine, L-glycine, d-alpha tocopheryl acetate, zinc gluconate, L-lysine HCl, L-threonine, L-cysteine HCl, ferrous fumarate, vitamin A (beta-carotene and retinyl palmitate), niacinamide, copper gluconate, pyridoxine HCl, thiamin HCl chromium polynicotinate, riboflavin, folic acid, biotin, cyanocobalamin, and cholecalciferol.

Notice: This product is to be used under the direct supervision of a physician or other licensed healthcare practitioner.

Vitamin A Warning: Excess Vitamin A intake may be toxic and may increase the risk of birth defects. Pregnant women and women who may become pregnant should not exceed 10,000 IU of pre-formed vitamin A (retinyl acetate or retinyl palmitate) per day.

This Product is Gluten Free.


*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease. If under medical care, or if pregnant or nursing, consult a health professional.


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