Your gut’s new best friend.

Your daily gut ‘multi-vitamin’

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Better gut health starts here.

Daily Microbiome Nutrition (DMN) represents a breakthrough in daily prebiotic supplements, crafted from a mix of fiber, resistant starch, and polyphenols. DMN is designed to nourish your gut microbes, bolster gut barrier integrity, alleviate gut symptoms, and promote glorious bowel movements.*

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A daily routine

Daily Microbiome Nutrition (DMN) is designed to be a simple, effective daily habit to fuel your digestive wellness.

This morning

Your journey starts with a refreshing, delicious glass of DMN, kickstarting
a powerful transformation for you and your microbes.*

Later today

Your gut microbes feast on three different types of prebiotics to produce bioactive postbiotics like short chain fatty acids.*


Modest changes have already started to take place in your microbiome. This is just the beginning of larger changes that are coming.*

A week from now

Signs of your gut microbiome evolving start to emerge in how you feel. You may notice less gut symptoms, better poops, more energy, and less hunger.*

4 weeks from now

After 28 days of use, DMN contains ingredients shown to increase beneficial gut microbes, improve stool regularity and form, reduce gut symptoms, and more.*


of Americans are not consuming enough fiber, leading to widespread fiber deficiency


is the typical resistant starch intake in the US – recommended amount is 15g/day or more


of Americans are not eating enough fruits and vegetables that contain polyphenols


Your daily gut 'multi-vitamin'

  • Clinically studied ingredients at proven doses*
  • Nourishes healthy gut bacteria with prebiotic fibers*
  • Supports gut microbiome health and SCFA production*
  • Promotes bowel regularity and supports normal bowel function*
  • Improves gastrointestinal comfort*
Download DMN guide

Certified low FODMAP and Glyphosate Free

Third-party tested for 100+ substances

Produced in a GMP- and FDA-accredited facility

Meets or exceeds strict regulatory requirements

Free from the "Big 9" allergens

Do you know what's in your supplements?

We do, and you will too.

Every batch of 38TERA supplements are third-party tested as part of our commitment to safety and transparency and we're excited to share those results with you.

Simply enter the 5-digit lot number on the bottom of the can:

Dr. Will Bulsiewicz, MD, MSCI

As a gastroenterologist, I struggled to find trustworthy, well-formulated supplements I could have for my patients. Everything I looked at made claims not based on scientific evidence or credible research and many are not appropriately tested. My frustration led me to do something radical! Introducing 38TERA— a gut-focused company dedicated to providing the supplements I always wished I had for my patients.

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The right way to your health.

Inspired by patients

As an internationally renowned gastroenterologist, I am creating solutions to the very real problems many people experience as the result of a damaged gut microbiome.

Guided by science

38TERA products work because we use clinically validated ingredients at therapeutic doses to achieve optimal gut health benefits. It’s formulated combining clinical research and microbiome expertise.

Designed for you and your microbes

Your gut microbes are central to your health and 38TERA is designed to nourish and enhance your gut microbiome to elevate your health.


Your questions, answered.

See what our subscribers are saying


"This has been a life saver"

Denise C.


"Far less bloating & gas"

Steve G.


"Absolutely worth every penny"

Melissa M.


"Keeps me regular"

Bernadette S.