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Metagenics GI Sustain

Metagenics GI Sustain
Metagenics GI Sustain
4 reviews Add review
  • 400g
In stock | 4 left
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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. Metagenics GI Sustain works by targeting the potential underlying causes with scientifically demonstrated nutrients that may be difficult to obtain through normal dietary means.

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  • Designed to provide gastrointestinal nutritional support.
  • The formula is uniquely designed to aid in promoting the growth of beneficial bacteria by including prebiotic nutrients, combined with readily digestible macronutrients.
  • 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.

Patient Benefits:

  • Nourishes the cells of the intestinal mucosa
  • Features rice protein concentrate supplemented with L-lysine and L-threonine for an improved amino acid profile
  • Rice syrup solids for a natural energy source
  • Features medium chain triglycerides, a readily absorbed and metabolised 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


  • Blend, shake, or briskly stir about 2 level scoops (60 grams) of GI Sustain into 120ml of chilled water or juice twice daily or as directed by your healthcare practitioner.
  • For extremely sensitive individuals, consider reducing consumption to ½ to 1 scoop with 120ml of chilled water or juice twice daily during the first 3 to 4 days before starting a full daily dose.


  • Vitamin A (2,500 IU as beta-carotene and 1,500 IU as retinyl palmitate) 4,000 IU 80%, Vitamin C (as ascorbic acid) 102 mg 170%, Vitamin D (as cholecalciferol) 50 IU 13%, Vitamin E (as d-alpha tocopheryl acetate) 50 IU 167%, Thiamin (as thiamin HCl) 0.525 mg 35%, Riboflavin 0.595 mg 35%, Niacin (as niacinamide) 7 mg 35%, Vitamin B6 (as pyridoxine HCl) 0.7 mg 35%, Folate (as calcium L-5-methyltetrahydrofolate†) 140 mcg 35%, Vitamin B12 (as methylcobalamin) 2.1 mcg 35%, Biotin 105 mcg 35%, Pantothenic Acid (as D-calcium pantothenate) 100 mg 1,000%, Calcium (as calcium citrate and dicalcium phosphate) 300 mg 30%, Iron (as ferrous fumarate) 3.6 mg 20%, Phosphorus (as dipotassium phosphate and dicalcium phosphate) 175 mg 18%, Magnesium (as magnesium citrate) 121 mg 30%, Zinc (as zinc gluconate) 7.5 mg 50%, Copper (as copper gluconate) 0.5 mg 25%, Manganese 1.3 mg 65%, Chromium (as chromium picolinate) 75 mcg 63%, Sodium 20 mg <1%, Potassium (as dipotassium phosphate) 300 mg 9%, Isomalto-oligosaccharides 3.4 g *, L-Glutamine 500 mg *, Glycine 100 mg *DL-Methionine 100 mg *G29, 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, rice flour, olive oil, medium chain triglycerides, natural flavours, silica, and rice maltodextrin

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Overall Rating
4.5 out of 5 stars from 4 reviews

4 out of 4 people would recommend this product

16/01/2020, By Wren
This product works really well. It also tastes great. Like a subtle vanilla milkshake. I agree with another reviewer that buying a smaller batch is a waste of time. This product needs to be taken daily and 400g does not go far.

The price point is high, which is unfortunate, but I’ve never had a product work better.

05/07/2019, By Cheri
Nice tasting and soothing for
digestive system, haven't used for long but notice an improvement in hair and nails
08/06/2019, By megan
I enjoyed the taste and texture. I’m not sure it helped my gastritis though
07/03/2018, By Michelle
Started this 10 days ago and the results have been amazing to say the least. As a sufferer of IBS for 27 years I didn't have much hope that this would make any difference but to my surprise it has drastically improved my issues. The taste is pretty awful however if you disguise it in a healthy breakfast smoothie then it's no problem at all. Definitely recommend this to anyone battling with chronic stomach issues!

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. Some products may be manufactured in a factory that also produce gluten, nuts and dairy products.

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