GI 60 Probiotic Formula

Powerful Gut Support, Designed for Results.

Dr. Tennant’s® NEW GI 60 Probiotic Formula delivers more of what matters most—live, thriving bacteria that reach your gut and actually work.

This updated formula was thoughtfully designed for those who want an effective, high-quality probiotic at an exceptional value, backed by the latest research in gut health.

We’ve enhanced this formula with:

• 60 Billion targeted CFUs to support meaningful colonization.
  
  
• A refined strain profile selected for daily gut balance, digestion, immune health, and stress, mood and wellbeing support.
  
  
• MAKTREK® Bi-Pass Technology designed to protect probiotics from stomach acid and improve survival.
  
  
• A synbiotic prebiotic formula that helps feed and fuel beneficial bacteria where they colonize.

Unlike many probiotics that don’t survive the digestive process, our advanced delivery system and clinically-studied formulation are designed to help support gut balance, reduce occasional bloating, and promote everyday energy and well-being from the inside out.

60 vegetarian capsules: A 30-day supply taking 2 capsules per day.

And at just $65 for a 30-day supply, it’s smarter for your body and your wallet.

Notes on storing this product: This product does not require refrigeration. However, because bacteria are sensitive to heat, it is important to store this product away from heat, in a cool dry location. 

Learn More About Probiotics

Disclaimer: This content is intended for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or qualified healthcare provider before starting any new supplement, especially if you are pregnant, nursing, taking medications, immunocompromised, or have an existing health condition. Individual needs and responses may vary. Use this information as a guide and modify based on your healthcare provider’s recommendations.

Probiotic Blend (60 Billion CFUs per serving):

Lactobacillus acidophilus (La‑14)
Bifidobacterium lactis (Bl‑04)
Lactobacillus plantarum (Lp‑115)
Lactobacillus paracasei (Lpc‑37)

Prebiotic Fiber Complex:

Fructooligosaccharides (FOS) (from Chicory Root)
Marine Polysaccharides (from Marine Algae)

Other Ingredients
Hypromellose (capsule), Rice maltodextrin, L-Leucine

Take 2 capsules daily, preferably with food, or as directed by your healthcare provider.

DO NOT TAKE WITH IODINE as this may reduce effectiveness. 

Download User Guide

What is Dr. Tennant’s® GI 60 Probiotic Formula?

Dr. Tennant’s® GI 60 Probiotic Formula is an advanced synbiotic blend, combining powerful clinically-studied probiotics and targeted prebiotics to support a balanced, healthy gut. This formula includes four clinically-studied strains, 60 billion CFUs per serving, key prebiotics and MAKTREK® Bi‑Pass Technology to ensure probiotics reach your intestines alive and ready to colonize.

What is a synbiotic formula?

A synbiotic formula combines probiotics (beneficial bacteria) and prebiotics (the nutrients they need to thrive). This combination promotes synergy, helping good bacteria survive, multiply, and outcompete harmful microbes in your gut.

What are prebiotics?

Prebiotics are special fibers that feed the good bacteria in your gut. The new formula includes Fructooligosaccharides (FOS) from natural Chicory Root, and Marine Polysaccharides from Marine Algae. Each is chosen to nourish the specific probiotic strains in the formula and enhance their survival and colonization.

How does Dr. Tennants® GI 60 Probiotic Formula ensure probiotic viability?

This new formula uses MAKTREK® Bi‑Pass Technology, a patented delivery system that protects probiotics as they pass through stomach acid. This ensures more live organisms reach your intestines, where they actually make a difference. 

How do probiotics survive stomach acid?

Stomach acid can kill probiotics, which is why we use the advanced delivery system. These capsules protect probiotics from stomach acid and ensure they reach the intestinal tract.

What probiotic strains are included in the formula?

Dr. Tennant’s® GI 60 Probiotic Formula includes four key, clinically-studied probiotic strains: Lactobacillus acidophilus (La‑14), Bifidobacterium lactis (Bl‑04), Lactobacillus plantarum (Lp‑115), and Lactobacillus paracasei (Lpc‑37).

These strains are backed by research to support digestion, immune function, gut barrier health, and stress, mood and wellbeing support.

Learn More About Probiotics

Why did you change the formula?

With scientific advancements and clinical studies, our understanding of probiotics has expanded, and we saw an opportunity to improve both effectiveness and value. Our new formula focuses on what really works offering four of the most clinically-studied strains, double the CFUs, advanced MAKTREK® delivery to survive stomach acid, and smart prebiotic support to help them thrive. It’s everything your gut needs in a daily probiotic, nothing extra, nothing wasted.

Is the new formula better for daily gut support?

Yes! The new combination of clinically-studied strains, delivery technology, and key prebiotics is designed for everyday gut health, with benefits for digestion, energy, immune resilience, and stress, mood and wellbeing support.

What’s different about the new Probiotic formula?

Here’s what’s new:

• More CFUs: Increased from 30 billion to 60 billion CFUs per serving.
  
  
• Better delivery: Switched from DRcaps® to MAKTREK® Bi‑Pass Technology to better protect probiotics from stomach acid.
  
  
• Refined strains: Focused on four clinically-studied strains for everyday gut, immune, and stress, mood and wellbeing support.
  
  
• Prebiotic upgrade: Uses Fructooligosaccharides (FOS) from Chicory Root, and Marine Polysaccharides from Marine Algae to better nourish the selected strains.
  
  
• More capsules, lower cost: 60 capsules per bottle, still a 30-day supply, now at a lower price.
  

Why are there now fewer strains?

Quality matters more than quantity. We carefully selected four powerful, research-backed strains that support the gut microbiome, immune system, and even stress, mood and wellbeing. This focused approach means better synergy, higher survival, and improved effectiveness.

Streamlining for Potency + Daily Use

As probiotic research has advanced, we refined our formula to focus on the strains that deliver the greatest benefit for everyday gut, immune health and stress, mood and wellbeing support.

We removed strains that offered overlapping support when paired with stronger, more versatile strains already in the formula.

By streamlining to four powerhouse, clinically-studied strains, we were able to:

• Increase potency, doubling CFUs from 30 billion to 60 billion per serving.
  
• Upgrade delivery, switching to MAKTREK® Bi-Pass Technology to better protect probiotics through stomach acid.

The result is a more focused, effective probiotic designed for daily use, with improved survival, synergy, and value.

What changed in the Prebiotics?

We’ve upgraded our prebiotic support to match our smarter probiotic formula. Dr. Tennant’s GI 60 continues to provide a powerful combination of prebiotics, which are among the most clinically-supported types for feeding beneficial gut bacteria.

Our new Prebiotic formula provides:

• Fructooligosaccharides (FOS) (from natural Chicory Root): Potent short-chain prebiotic derived from natural chicory root. Rapidly fermented by bifidobacteria and lactobacilli. Strong synergy with the selected strains in the new formula.
  
  
• Marine Polysaccharides (from Marine Algae): An innovative marine-derived fiber that forms a protective matrix around probiotics (especially during digestion). Enhances survival plus selectively feeds certain beneficial strains.
  
  
• Improved Synergy: The new blend focuses on feeding the specific strains in the updated formula.
  
  
• Smarter Delivery Support: The marine polysaccharide component not only acts as a prebiotic, but helps form a barrier around the probiotic, enhancing survival through stomach acid and further boosting colonization once it reaches the gut.
  
  
• Better Standardization: Chicory root and marine fibers are more consistent and clinically validated than baobab or Jerusalem artichoke, which vary more in polyphenol content and fermentability.
  
  
• Fewer Ingredients, More Precision: Instead of layering multiple general prebiotics, we focused on the most effective duo for feeding beneficial strains and supporting real results.
  
  

Learn More About Probiotics