In terms of surface area, the gastrointestinal tract comprises one of the largest organs in the body. The roles that it plays are varied and extend well beyond simply moving and digesting food to allow for the absorption of nutrients. In addition to acting as a barrier against the harsh external environment, the digestive system also represents one of the body’s largest immune organs, possessing an intricate lymph network. The gastrointestinal tract houses a highly complex ecosystem that contains trillions of microorganisms. Research continues to uncover new ways in which beneficial bacteria can positively impact health, expanding beyond the confines of the digestive tract to include cardiovascular health, cognition, weight management and more.


Use our side-by-side comparison chart to find the right Multi-Probitiotic® for you and your clients.

View the Multi-Probiotic Product® Selection Guide

Learn more about new products offering Digestive Support for Healthy Living

Gastrointestinal Support Protocol

Developed by Daniel Kalish, D.C.+

Protocol Objectives:
To provide supplemental recommendations to help support the microbiome, maintain integrity of the intestinal lining, and promote GI function and overall digestive health.

View the Gastrointestinal Support Protocol

View the GI Microbiome Support Protocol

+Dr. Kalish is a retained consultant for Douglas Laboratories.

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  1. 80106 | Betaine Plus ®
    Betaine Plus ®
    Betaine Hydrochloride for support of stomach digestion
  2. 7102-90X | Bilex
    Healthy digestive function
  3. 80023-100X | Cape Aloe
    Cape Aloe
    Gastrointestinal regularity
  4. FPC | Fiber-Plex ™
    Fiber-Plex ™
    Digestive health
  5. 201538-90X | GI Digest
    GI Digest
    Comprehensive digestive enzyme formula
  6. 202467-60X | Gluten-Dairy Ultra Enzyme 60 chewable tablets
    Gluten-Dairy Ultra Enzyme 60 chewable tablets
    Supports gluten and dairy digestion
  7. INT-C | Intestamine ®
    Intestamine ®
    Gastrointestinal support
  8. 7940-60X | L-Glutamine
    L-Glutamine 500 mg capsule
  9. 907101-250X | L-Glutamine Powder
    L-Glutamine Powder
    Pure L-Glutamine powder 4 g
  10. 57774P-70X | Microbiome Protect™ w/IgG 70 g
    Microbiome Protect™ w/IgG 70 g
    ImmunoLin® immunoglobulins, prebiotic, and spore probiotic for intestinal health
  11. 202634-60X | Multi-Probiotic 40 Billion
    Multi-Probiotic 40 Billion
    Gastrointestinal and immune health
  12. 202516-60X | Multi-Probiotic® 15 Billion
    Multi-Probiotic® 15 Billion
    Gastrointestinal and immune health
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