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 Aging

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.

View as Grid List
per page
Set Descending Direction

Showing 19 Items

  1. Pan-Ox-5 ™
    Pan-Ox-5 ™
    Digestive enzymes for the stomach and intestinal tract
  2. Multi-Probiotic® Sinus Support‡
    Multi-Probiotic® Sinus Support‡
    A unique combination of probiotics, prebiotic, NAC and Quercetin
  3. Multi-Probiotic ® YC-7 ™
    Multi-Probiotic ® YC-7 ™
    A 7 strain probiotic formula with prebiotic for female support
  4. Multi-Probiotic ® 40 Billion (Powder)
    Multi-Probiotic ® 40 Billion (Powder)
    A synbiotic blend of 16 potent strains with scFOS prebiotic
  5. Intestamine ®
    Intestamine ®
    Supports the intestinal structure, function, and mobility in capsule form
  6. Caprylate Plus
    Caprylate Plus
    Caprylic acid for yeast support
  7. Caprylex ™
    Caprylex ™
    High strength caprylic acid for yeast support
  8. L-Glutamine Powder
    L-Glutamine Powder
    Pure L-Glutamine powder 4 g
  9. I.B. Comfort ®
    I.B. Comfort ®
    A special formula for intestinal comfort, balance and regularity
  10. GI Digest
    GI Digest
    A complete vegetarian enzyme formula including gluten and dairy enzymes
  11. Pylori-Plex
    Mastic gum plus nutrients for stomach and GI health
  12. Olive Leaf Extract
    Olive Leaf Extract
    Olive leaf for microbial support or heart health
  13. D.L. Duo-Dophilus ®
    D.L. Duo-Dophilus ®
    Acidophilus and Bifidus probiotic powder with FOS
  14. Betaine Plus ®
    Betaine Plus ®
    Betaine Hydrochloride for support of stomach digestion
  15. Licorice Root-V
    Licorice Root-V
    Glycyrrhizin licorice root standardized
  16. Licorice Root-V
    Licorice Root-V
    Deglycyrrhizinated licorice (DGL) for GI support
  17. D.L. Acidophilus + Pectin (250 count)
    D.L. Acidophilus + Pectin (250 count)
    Lactobacillus complex with Citrus pectin fiber
  18. Vegetarian Enzyme (120 count)
    Vegetarian Enzyme (120 count)
    Digestive enzymes suitable for vegetarians
  19. Ultrazyme ™
    Ultrazyme ™
    A comprehensive digestive enzyme formula
View as Grid List
per page
Set Descending Direction

Showing 19 Items