Metagenics GI Sustain

Metagenics GI Sustain

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Nutritional Support for the Management of Compromised Gut Function

Formulated to nutritionally manage leaky gut syndrome, Metagenics GI Sustain is a medical food that provides specialized nutritional support, including amino acids and prebiotic fibre, combined with readily digestible, low-allergenic-potential macronutrients for patients with compromised gut function and malabsorption. This formula supports intestinal mucosal integrity and promotes the growth of beneficial bacteria to address dysbiosis associated with high intestinal permeability, and features L-glutamine and isomalto-oligosaccharides.

  • Natural
  • Vegetarian
  • Made Overseas
  • Non-GMO  
  • Gluten free
  • Formulated for use with modified elimination diet (to reduce dietary chemicals and common foods with allergenic potential) to offer a higher level of support for better results.
  • 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.
  • Formulated with rice syrup solids as a natural energy source.
  • Features a readily absorbed and metabolized lipid source.
  • Optimized with the prebiotic IMO to selectively nourish beneficial bacteria, including lactobacilli 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.
  • Features methylated vitamin B12 and calcium L-5-methyltetrahydrofolate, a bioavailable folate.


Blend, shake, or briskly stir about 2 level scoops (60 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 1/2 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.


Rice protein concentrate, rice syrup solids, rice flour, isomalto-oligosaccharides, olive oil, magnesium citrate, calcium citrate, medium-chain triglycerides, natural flavors, vitamin and mineral blend (rice maltodextrin, D-calcium pantothenate, ascorbic acid, d-alpha tocopheryl acetate, zinc gluconate, beta-carotene, D-biotin, ferrous fumarate, niacinamide, retinyl palmitate, copper gluconate, pyridoxine HCl, thiamin HCl, riboflavin, chromium picolinate, cholecalciferol, methylcobalamin, and calcium L-5-methyltetrahydrofolate), dipotassium phosphate, L-glutamine, silica, dicalcium phosphate, DL-methionine, L-glycine, L-lysine HCI, L-threonine, and L-cysteine HCl. palmitate), niacinamide, copper gluconate, pyridoxine HCl, thiamin HCl, chromium polynicotinate, riboflavin, folic acid, biotin, cyanocobalamin, and cholecalciferol.

Please Note:

Faithful to Nature is an online retail store, specialising in a wide selection of natural supplements, vitamins, superfoods and health-related products. Our green team is all about helping you unlock your full potential to live a healthy life; however we are not medical professionals. Please do consult your health care practitioner when seeking medical advice.

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