

Advanced Gut Health Formula – Backed by Science








Intestinal Fortitude provides top quality supplements. I have seen profound results in my clients when using their various formulas. They are thoughtfully created and do fantastic things to heal the gut. I was thrilled to discover Intestinal Fortitude and will be using their products forever!
Emily D., Functional Nutritional Therapist












Pure & Clean Formula
Decades of Science in Every Capsule





the Intestinal Fortitude 180-Day Healthier You Guarantee.

Yes, all Intestinal Fortitude supplements are formulated for safe daily use when taken as directed.
No refrigeration is needed—our probiotics use shelf-stable, delayed-release capsules.
While results vary from person to person, many users notice improvements within two to four weeks of consistent daily use. Some report feeling better even sooner, depending on their individual gut health and inflammation levels.
Yes, our products are designed to work synergistically, but consult your healthcare provider if unsure.
Our formulas are non-GMO, gluten-free, dairy-free, and free from common allergens.

Jamie
Lifesaver
"My gut has been messed up for a long time. I just got used to it, and tried to get on with it. When it started going further down hill I decided to try something new. Well, I'm glad I did. Your products have made a huge difference. Thanks!"

Lee
With the help of these products I've got a green thumb!
"Weed, Feed, and Seed is pretty clever. I'm definitely tending to my garden and it is thanking me for it. I haven't done this well for years."

Cam
Great products!
"Anyhow, this is one of the best probiotic supplements I have used for digestion help. I have never gone so long without any type of discomfort in my belly prior to using this."
Weed Then Feed Then Seed
Everything that lives in your Gut is called your Microbiome. Think of your Microbiome like a garden.
If you want anything other than just plain old weeds to grow, you have to put in some effort.
Speaking of weeds... your current gut garden has tons of harmful bacterial species taking up space and nutrients. If this garden is going to thrive we need to get rid of those weeds. The "Weed" portion of this mix comes in the form of a bacteriophage cocktail. Phage-1 comes in and clears out the unwanted bacterial species and leaves behing the space and nutrients that your beautiful plants will need to grow.
You're going to want to spread some fertilizer to feed your plants something better than what's already in the soil, and that's proven to help them grow.
PREbiotic GOLD is that fertilizer! It is the "Feed" in this combo and its complex Gold Kiwifruit Pectin has what you need to help your plants thrive.
When your soil is ready you have to plant "Seeds" so that you are in control of what grows. You wouldn't grab a bag of random unknown seeds and spread them out. What if you ended up with Brussel sprouts?!?!
You would pick and choose the plant varieties that you knew would grow happy and healthy in your garden. And that's why we chose the 11 bacterial species that are in PRO-B11.
So, grab a handful of seeds... like 22 BILLION of them and let's get growing!
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