Written by: Tennant Products Editorial Team
Reviewed by: Patsy Scott, CHN (Certified Holistic Nutritionist)
Last Updated: February 2026
TL;DR
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Prebiotics are specialized fibers that feed beneficial gut bacteria
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Dr. Tennant’s® GI 60 Probiotic Formula includes two targeted prebiotics
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These prebiotics help probiotics survive, colonize, and function effectively
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The formula supports digestion, gut lining health, immune resilience, and gut brain balance
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GI 60 uses MAKTREK® Bi Pass Technology to support delivery through stomach acid
What Are Prebiotics?
Prebiotics are non-digestible fibers that serve as food for beneficial bacteria in the gut.
While your body does not break down prebiotics, probiotics rely on them for energy. Without prebiotics, beneficial bacteria may struggle to survive or remain active long enough to provide meaningful support.
This is why pairing probiotics with prebiotics is essential for long term gut health.
Why Prebiotics Matter in a Probiotic Formula
Probiotics alone may not be enough.
Once probiotics reach the gut, they need nourishment to:
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Establish colonies
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Support gut barrier integrity
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Communicate with the immune system
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Maintain balance within the microbiome
Prebiotics help create an environment where beneficial bacteria can survive and function effectively.
Prebiotics in Dr. Tennant’s® GI 60 Probiotic Formula
Dr. Tennant’s® GI 60 Probiotic Formula is a synbiotic, meaning it combines probiotics and prebiotics in one targeted system.
The prebiotics in GI 60 were selected to support the specific probiotic strains in the formula.

Fructooligosaccharides (FOS) From Chicory Root
Fructooligosaccharides are short chain prebiotic fibers derived from chicory root.
How FOS Helps
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Nourishes bifidobacteria and lactobacilli
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Supports probiotic activity in the gut
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Helps maintain a balanced microbiome
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Supports digestive comfort and regularity
FOS is fast fermenting, meaning it provides an immediate food source for beneficial bacteria once they reach the intestines.
Marine Polysaccharides From Marine Algae
Marine polysaccharides are specialized fibers derived from marine algae.
How Marine Polysaccharides Help
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Support a healthy gut environment
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Help nourish beneficial bacteria
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Work alongside MAKTREK® Bi Pass Technology to support probiotic survival
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Support gut lining health
These fibers also play a role in the protective delivery system used in GI 60.
How Prebiotics Work With MAKTREK® Bi Pass Technology
Many probiotics do not survive stomach acid long enough to reach the intestines.
GI 60 uses MAKTREK® Bi Pass Technology, which includes marine polysaccharides that form a protective gel during digestion. This helps shield probiotics as they pass through the stomach and allows them to be released where they are needed.
Prebiotics then help nourish those probiotics once they arrive.
This combination supports real world performance, not just label potency.
How Prebiotics Support Digestive and Immune Health
A balanced gut microbiome supports more than digestion.
Prebiotics help beneficial bacteria support:
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Digestive comfort and regularity
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Gut lining and barrier integrity
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Healthy immune signaling
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IgA activity, an important immune defense antibody
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Gut-brain communication related to stress and mood
Supporting beneficial bacteria with prebiotics is one way to support whole body wellness.
Why Dr. Tennant’s® Uses a Targeted Prebiotic Approach
GI 60 focuses on targeted prebiotics that are clinically supported and compatible with the probiotic strains in the formula. This avoids unnecessary fillers and helps ensure each component serves a clear purpose.
How to Take GI 60 Probiotics
Take Dr. Tennant’s® GI 60 Probiotic Formula as directed on the label.
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Take 2 capsules daily
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Take with 4 to 8 oz of filtered water
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Can be taken with food or without food
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Designed for daily use
For best results, regular daily use is recommended.
Important Use Notes
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Do not take GI 60 at the same time as iodine, as this may reduce effectiveness
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If you are new to probiotics, consider starting slowly and increasing as your body adjusts
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Always consult your healthcare provider if you have questions or are taking medications, as supplements may affect certain medications
FAQs
What is the role of prebiotics in GI 60?
Prebiotics feed beneficial bacteria and help probiotics remain active and effective in the gut.
Does GI 60 contain prebiotics?
Yes. GI 60 includes fructooligosaccharides from chicory root and marine polysaccharides from marine algae.
Why are prebiotics important for probiotics?
Without prebiotics, probiotics may not survive or stay active long enough to support gut health.
Are prebiotics safe for daily use?
Yes. The prebiotics in GI 60 are included at levels designed for daily support.
Is GI 60 a synbiotic formula?
Yes. GI 60 combines probiotics and prebiotics in one formula for synergistic support.
It’s your body. It’s your life. Ingredients matter.
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Dr. Tennant’s® GI 60 Probiotic Formula provides a biological synergy with “good bacteria” (probiotics), “food for the probiotics” (prebiotics), and a protective delivery technology to maximize probiotic effectiveness and support a healthier GI system.
Disclaimer
The information provided on this page is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice. Always work with your healthcare provider before starting any supplement program.