FitProbio+ | Patented HOWARU® Shape B420 at 10 Billion CFU for Gut Integrity & Body Composition

Name: FitProbio+
Brand: Fitties
SKU: BIO-LEAN-C30
Price: 59.00 USD
Availability: InStock

One patented strain. Ten billion CFU. Printed on the label, backed by a human trial. For people who want their gut health to actually support their goals.

$59.00

30 servings | $1.96/serving

Supports gut barrier integrity
Supports healthy body composition
Supports lower day-to-day calorie intake, no gimmicks, just the clinically studied strain doing the work

A precision probiotic built on one patented, clinically studied strain at a disclosed 10 Billion CFU, formulated to reinforce gut integrity and support body composition goals, without fillers, gimmicks, or generic strains.

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Body Composition Support
Clinically researched B420 helps support healthier body fat trends.
Gut Barrier Integrity
A targeted strain that supports natural gut lining function.
Calorie-Intake Support
Patented HOWARU® Shape B420, dosed at a disclosed 10 billion CFU, helps support lower day-to-day calorie intake.
Targeted Delivery
DRcaps™ protect the strain and support release in the small intestines.

Overhead view of fit female removing packet from box of Fitties FitProbio+

One Strain. Ten Billion CFU. Zero Guesswork.

Most probiotics rely on vague promises. FitProbio+ relies on precision. It features patented, clinically studied HOWARU® Shape B420 to support gut function, delivered in DRcaps(TM) gastro-resistant capsules and nitrogen-purged packaging to protect potency and ensure it reaches where it matters.

No dairy. No gluten. No filler strains. Just targeted gut support, done properly.

Support the system everything else depends on.

Made for the Metabolism-Minded

Most probiotics just exist. This one names the strain, prints the 10 Billion CFU dose, and backs it with a patented, clinically studied ingredient.

Who It’s For:
Individuals working toward healthy body composition
People who want real support for lower daily calorie intake, not another weight-loss gimmick in a capsule
Anyone who appreciates targeted strains and real delivery tech
Who It’s Not For:
Shoppers who buy whatever’s on sale
People expecting overnight changes without consistency
Anyone who thinks all probiotics are the same

What's Inside

One strain. One dose. Fully disclosed. No proprietary blends, no filler strains, no mystery CFU counts. Every milligram is on the label, exactly where the research is.

Patented HOWARU® Shape B420, 10 Billion CFU. The strain studied in a 225-person double-blind human trial.

Clinically researched Bifidobacterium animalis subsp. lactis B420, named and dosed at 25 mg delivering 10 Billion CFU per capsule, to help support gut barrier function, healthy body composition, and lower daily calorie intake.

DRcaps(TM) Gastro-Resistant Capsules

DRcaps(TM) gastro-resistant capsules are designed to slow the strain's exposure to stomach acid and support a more targeted release to the small intestines, then keep it sealed under nitrogen until the moment you take it.

Nitrogen-Purged Blister Packaging

Helps maintain strain stability by protecting against heat, moisture, and oxygen, three things that commonly degrade lesser probiotics.

Engineered Out, Not Just Free Of

Vegetarian capsules formulated to exclude wheat, gluten, soy, animal and dairy products, fish, shellfish, peanuts, tree nuts, egg, GMO-derived ingredients, artificial colors, artificial sweeteners, and artificial preservatives. Clean by design, for people who take their gut health seriously.

Made in the USA

Made in the USA. Manufactured in a GMP compliant facility, and like every Fitties formula, made to meet or exceed cGMP quality standards.

Formulated to exclude: wheat, gluten, soy, animal and dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMOs), artificial colors, artificial sweeteners, and artificial preservatives.

Other ingredients include: microcrystalline cellulose, acid-resistant capsule (hypromellose, gellan gum, and water), ascorbyl palmitate, and silica.

The Typical User Journey

A simple timeline of how FitProbio+ commonly becomes part of a routine.

Starting Out
From day one, the acid-resistant DRcaps(TM) deliver B420 where it counts, supporting gut barrier function as you begin your routine.
Building Consistency
As consistency builds, B420 keeps doing the heavy lifting: supporting gut barrier function, a healthy body composition, and lower daily calorie intake.
The Long Game
Over time, as the routine becomes established, FitProbio+ keeps supporting gut barrier function, a healthy body composition, and lower daily calorie intake. This is a foundation, not a quick fix.

Closeup of Fitties FitProbio+ on kitchen counter with fit male in the background

How to Use FitProbio+

Take 1 capsule daily with water
Consume at the same time each day for best consistency
Can be taken with or without food

Take once daily, every day. FitProbio+ is non-stimulant and can be taken morning or night. Most users prefer morning so it becomes part of a stable routine.

Pro Tip: Your microbiome thrives on consistency. Take FitProbio+ at the same time every day to keep your gut environment balanced and give the B420 strain its best shot at doing the work.

How FitProbio+ Compares

Most probiotics hide behind vague blends and shelf-stable promises. We name the strain, print the CFU, and back it with a human trial. Built for people who read the label, not the front of the jar.

Patented HOWARU® Shape B420, 10 Billion CFU, single strain (no blend)

Nitrogen-purged blister packs

DRcaps(TM) acid-resistant capsules

Calorie-intake support

Clinically studied for body composition support

Supports gut barrier integrity

No fillers or artificial additives

Made in the USA in a GMP-compliant facility

FitProbio+

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FitProbio+

Typical Probiotic

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The Proof Is in the Routine

See what people are saying

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Stack with Purpose

FitProbio+ holds the same line every Fitties formula does: named ingredients, disclosed doses, research behind the strain. Stack it with the rest of the system and never wonder what is actually in the capsule.

Make support for lower daily calorie intake a non-negotiable in your stack
Back your gut integrity with focused support that matches your standards
Elevate your nutrition and training with a system built for those who expect more

Find Your Stack

Frequently Asked Questions

What makes FitProbio+ different from other probiotics?

FitProbio+ is built on one patented, clinically studied strain: HOWARU® Shape B420 at a disclosed 10 Billion CFU, not an anonymous blend of whatever strains were cheapest that quarter. It is sealed in DRcaps(TM) gastro-resistant capsules and nitrogen-purged blister packs so the strain you paid for is the strain you actually take.

Do I need to refrigerate FitProbio+?

No. FitProbio+ is formulated and packaged to maintain stability at room temperature, thanks to its sealed, nitrogen-purged blister packs.

When should I take FitProbio+?

You can take it any time of day. Morning tends to work best for building a consistent routine. FitProbio+ does not contain stimulants.

Can I take FitProbio+ on an empty stomach?

Yes. DRcaps(TM) capsules are designed to help protect the strain as it passes through the stomach, whether you’ve eaten or not.

How long does it take to notice a difference?

Every microbiome is different, and individual responses vary. B420 has been studied over consistent daily use for its role in supporting gut barrier function, a healthy body composition, and lower calorie intake. For many it takes several weeks of consistent daily use. No overnight miracles, just a clinically studied strain doing its job.

Is FitProbio+ safe for daily use?

Yes. FitProbio+ is designed for long-term, daily use and includes a probiotic strain shown to be safe and well-tolerated in clinical research.

Does FitProbio+ help with body composition?

FitProbio+ features a probiotic strain studied for its role in supporting gut barrier function, the reduction of body fat mass, and lower calorie intake. One strain, clinically studied, no proprietary-blend hiding. Individual responses vary.

What does the B420 strain actually do?

B420 has been researched for its role in supporting gut barrier function, altering the gut microbiota, and promoting lower caloric intake, all of which support a healthy body composition. Real mechanisms from real trials, not marketing-tub claims.

Why are the capsules individually sealed?

Exposure to heat, moisture, air, and light can reduce probiotic viability. Our nitrogen-purged blister packs help protect potency until the moment you take it.

Can I stack Fitties products together?

Yes. All Fitties supplements are formulated with complementary ingredient profiles, so they can be used as part of the same daily routine. If you want a ready-made stack, our curated bundles pair the right products for strength, performance, recovery, and overall health so you don't have to guess.

Are Fitties products third-party tested?

Yes. Every Fitties formula goes through independent third-party testing to verify purity, potency, and identity before it ever reaches your hands. No hidden extras. No low-grade shortcuts. Just ultra-premium, research-backed ingredients that are formulated to match exactly what the label says.

Where are Fitties products made?

All Fitties supplements are manufactured in the USA in cGMP-certified, FDA-registered facilities. We don’t outsource quality. We build everything to the highest standard because your health and performance deserve nothing less.

Are Fitties supplements vegan, gluten-free, or allergen-friendly?

Each product is different, and we call out all dietary details clearly on every product page. Many formulas are vegan, gluten-free, dairy-free, or soy-free, and we never use artificial dyes or cheap fillers. If something doesn’t fit your dietary needs, you’ll know upfront.

What Real Users Are Saying

Reviews from athletes and high performers who expect to get what they pay for in their supplements.