Live Your Healthiest Life with the
Most Potent Probiotic on the Market

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Our probiotic contains 100 billion CFUs and the largest concentration of Bifidobacterium longum on the market for improved digestion, brain fog, and mood.

*Our Bifido Maximus Powder is a refrigerated product and ships in an insulated bubble mailer with an ice pack which more than ensures the product remains stable throughout delivery. Please know the ice pack is meant to melt so it is normal to receive a warm ice pack. Our products remain stable in temperatures up to 120 degrees.

We do suggest that you refrigerate all probiotic capsules and powders upon receipt in order to retain their maximum potency. You can, however, travel with our probiotic supplements unrefrigerated for two to three weeks with very minimal bacterial count reduction.

$ 144.00
$ 144.00

Available in Powder or Capsules: 

1 serving of powder =0.8 teaspoons = Up to 200 billion CFUs
Each bottle has 60 servings

1  serving = 1 capsule = 100 billion CFUs
Each bottle has 28 servings


Here is a chart to help you compare a variety of probiotics that we regularly recommend and can be found here on our website.

Restore diverse, keystone bacteria to your microbiome so you can enjoy a diverse diet without worry

Up to 200 billion CFUs per serving to support better digestion, less brain fog & boosted mood & energy

Proprietary formula free of Streptococcus & common allergens, including dairy/casein & gluten 

How Is Your Gut Garden Growing?

Your gut terrain is like a garden. Planting a variety of crops helps ensure rich soil and a healthy harvest. In the same way, when you bring back diversity and foundational bacteria to your gut microbiome, you can improve the most basic tenets of your health. In fact, studies show that the gut flora of modern-day centenarians contains large amounts of Bifidobacterium longum and Akkermansia, plus great diversity in their microbiomes. They have the core, ancestral fingerprint present that we need to live longer and stronger.

Bifido Maximus is ideal for:

  • Improving digestion by restoring the gut      flora diversity lost to modern life 
  • Battling the bloating, brain fog, and low energy that can come from poor gut health  
  • Restoring bowel regularity to eliminate chronic diarrhea or constipation 
  • Helping with food sensitivities and frequent indigestion or heartburn 
  • Boosting the 70% or more of your immune system that resides in your gut  

Dr. Grace’s OG Probiotic Blend  

The Gut Institute never settles, especially when it comes to your gut health! Dr. Grace developed Bifido Maximus to be a truly healing probiotic blend for the gut, replenishing the friendly microbes most of us are missing in our microbiome. Specifically, this blend contains: Bifidobacterium longum,  Bifidobacterium lactis/Bifidobacterium bifidum/Bifidobacterium infantisLactobacillus rhamnosus,  Lactobacillus salivarius, and  Lactobacillus gasseri.

Choose the Bifido Maximus Powder if you:

  • Need a higher dose of probiotics 
  • Want to add your probiotics to recipes  
  • Each bottle of powder contains 30-60 servings depending on your dosage. 

Choose the Bifido Maximus Capsules if you:

  • Prefer capsules to powder 
  • Travel often and need the convenience of capsules 
  • Each bottle contains 28 capsules, with each capsule being one serving of probiotics with 100 billion CFUs.

What People Are Saying

“Makes a big difference in digestion, energy, and mood.” -  Erika H. Verified Buyer

What Makes The Gut Institute Special?

Serious Science

Every TGI product &
program is backed by
solid, respected research.

Clean ingredients

No gluten, no fillers &
no contaminants - you
only get the good stuff!

Super superior

We offer exceptional
products, tested for 
potency & efficacy.

Committed Care

Your health is our passion
& we promise to treat you
with respect & kindness.

What To Expect

Within Hours

You may see a calmer gut and mild energy improvements. Gurgling, gas, and increased adverse symptoms associated with the die-off of harmful bacteria may also occur (called a “Herxheimer reaction”). Stick with it!

Within Weeks

Look for less bloating, a calmer gut, better overall gut function, and Bristol 4 stools. (That means nice coils in the toilet bowl...)

Within Months

Expect better energy, restoration of gut rhythms such as bowel movements, improved digestion, less indigestion, and a boosted mood.

Always Ask Questions

At The Gut Institute, we believe
everyone should be empowered to
advocate for their own health. 

That means asking plenty of questions to discover which foods, supplements, and health routines are right for you! 

Below, you'll find a selection of Frequently Asked Questions about this product, as well as TGI shipping and subscriptions.

Want to know more?

Email us at – we're happy to help!


  The 5 Pillars of the Gut Institute Experience

1. We care

Our focus may be gut health, but our approach is heart centered. We are driven by a passion for helping people live healthier, more fulfilling lives. 

2. We listen

The Gut Institute approach is individualized, based on your own personal body chemistry and symptoms. We take the time to understand your needs and goals. 

3. We learn

Education and study are foundational in all we do. It’s why we build our own programs, interpret our own labs, and create our own proprietary probiotics. 

4. We share

Whether it’s through live workshops, blogs, or podcasts, Dr. Grace and The Gut Institute team recognize that the right information can empower and bring hope. 

5. We believe

There are no lost causes. If you are willing to take accountability for your health, we will stand with you and offer the resources and support to change your life. 


The amazing Dr. Grace
"Formulations are perfect.  Very potent!!  So much so that my kiddos take them every other day.  The blend is stable and effective which is a hurtle for most probiotics.  Dr. Grace loving care for the most important part of our body shows in her amazing products.” Alvin HVerified Wholesale Buyer

“Thank you so much for your help! You are such a blessing! Love you!! And THANK YOU. My hip is great! Despite a terrific, abundant, love-filled life I was really sick! I was not sure if I would ever feel better again. I thought I might have to depend on caregivers. I was sure I needed a psych ward, but my family wouldn’t let me go. Through her individualized sleuthing of my body's clues, brilliant scientific understanding, and profound trust in the two as partners, Grace saw only Hope. I clung to her star and it worked! I am healing, whole, back to life again, forever grateful to Grace Liu!”  - K.C. Verified Buyer

“Yes without your powder I am nothing 😭😭 Wow out of your magic and back to using heaps of toilet paper. Your powder is MAGICAL!!!!!!!! Your probiotics are amazing 😉 From gooey to clean toilet paper!!”  - Functional Medicine Physician Verified Buyer

bifido|maximus powder
"love the powder, it has really helped my belly and overall wellness."  - Stephanie M. Verified Buyer

Just started this last week and have seen amazing results. So happy with this product ." - Julie G. Verified Buyer

"Great product. It arrived very fast."  - Claudia T.  Verified Buyer