Health & Wellness 5 min read
6 Reasons Your Gut Issues Are More Fixable Than You Think
Sarah J.
Sarah J.
Your gut controls more than just digestion. It affects how you feel after you eat, how often you go, and whether you feel light or bloated and backed up. 

But chances are, you're not getting nearly enough of the one thing your gut depends on to work properly—fiber. 

Core Fiber's diverse blend of prebiotic fibers helps support how your gut is actually supposed to function—so digestion gets easier and more consistent, and you get control back over your life. 
6 Reasons Your Gut Issues Are More Fixable Than You Think
Effortless, Complete Bowel Movements (Daily)
1
Effortless, Complete Bowel Movements (Daily)
No more straining. No more skipping days. No more “almost.”

Insoluble fiber and resistant starch help add bulk and structure to your stool, while soluble fiber helps retain water—creating stools that are soft, well-formed, and easy to pass.

So you can go consistently, completely, and comfortably… without thinking about it.
No More Feeling “Stuck” or Not Finished
2
No More Feeling “Stuck” or Not Finished
You know the feeling—you go, but it doesn’t feel like you’re actually done.

That’s often a fiber quality problem, not just a fiber quantity problem.

Different fibers play different roles in how waste moves through your gut. Insoluble fiber helps move things along, while fermentable fiber helps your gut stay regular—so things don’t get stuck or backed up.

When you combine these fiber types, waste efficiently moves through your system—so you actually feel clear, light, and finished.
Less Bloating & Gas
3
 Less Bloating & Gas
Bloating isn’t just about what you eat it’s also about what isn’t moving.

When digestion isn’t flowing the way it should, food can linger in your gut—creating gas buildup and uncomfortable pressure.

Slowly fermenting prebiotic fibers like acacia fiber, along with resistant starch from green bananas and potatoes, help support gentle fermentation while improving transit time.

The result: less gas buildup, less pressure, and a flatter, more comfortable stomach.
Natural Detox That Actually Balances Your Hormones
4
Natural Detox That Actually Balances Your Hormones
If you aren’t pooping, you aren’t detoxing.

Waste, toxins, and excess hormones are meant to be eliminated through regular bowel movements. When digestion slows down, those compounds can linger, and even be reabsorbed.

Insoluble fiber helps move waste out efficiently, while fermentable fiber supports the good gut bacteria involved in processing and eliminating these harmful compounds.
Healthier Microbiome = Lasting Digestive Improvements
5
Healthier Microbiome = Lasting Digestive Improvements
Most fiber supplements are only designed to act as laxatives.

Prebiotic fiber is what actually fixes the system at the source.

Fermentable fibers like chicory root inulin, acacia fiber, and resistant starch feed beneficial gut bacteria, which produce short-chain fatty acids (SCFAs)—key compounds that improve digestion, reduce inflammation, and strengthen the gut lining.

Better bowel movements aren’t just the result—they’re the signal your gut is getting healthier.
High-Quality Fiber That Mirrors a Whole Foods Diet
6
High-Quality Fiber That Mirrors a Whole Foods Diet
Fiber isn’t just about how much you get—it’s about the type and diversity of fiber you’re consuming.

Different whole foods contain different types of fibers – soluble fiber, insoluble fiber, fermentable fiber, and resistant starch – with each playing a different role in digestion and gut health. 

But most people’s diets—and most fiber supplements—only provide one or two of these. That’s why you can still feel constipated, bloated, or irregular, even if you’re already getting a lot of fiber in your diet. 

A diverse blend of high-quality fibers helps replicate what your body is designed to receive from a whole foods diet—supporting stool formation, digestion, and a healthier microbiome.

That’s the difference between taking fiber…and actually fixing your gut.
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The Most Complete Fiber For Total Digestive Support

A multi-fiber, prebiotic system designed to improve digestion & regularity — so you can feel better now while building a stronger foundation for long-term gut health.

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More Fiber, More Support:
Each serving delivers 6g of fiber—more than most powders or gummies—so you get real digestive support you can feel.

Soluble & Insoluble Fiber:
Core Fiber includes both types of fiber your body needs. Soluble fiber feeds your gut microbes and supports smoother digestion. Insoluble fiber helps keep everything moving—naturally and effectively.

Built for Real Life:
Whether you’re lifting, working, parenting, or all of the above, Core Fiber fits right in. It supports digestion, nutrient absorption, and all-day energy—so you can feel lighter, stronger, and more balanced.

Clean, Easy, Effective:
No artificial flavors. No fillers. Just a gut-friendly blend that mixes fast, tastes great, and actually works.

Core Fiber is made with a blend of five all-natural, plant-based fibers selected for their numerous prebiotic benefits and gut-friendly profile. 

Core Fiber contains:

NO sugar
NO artificial ingredients
NO gluten
NO soy
NO dairy
NO GMOs


It is also vegan and keto-friendly.

Science
Fiber is one of the most well-studied and widely recommended nutrients in human health, with thousands of clinical studies supporting its role in digestion, microbiome health, metabolic function, and even skin clarity and immune support. Core Fiber is formulated in collaboration with leading MDs and PhDs to deliver the most effective types and forms of fiber—no filler ingredients, no gimmicks. Just real results rooted in science. 

Third Party Testing
Our products undergo rigorous testing to ensure quality and purity. We work with highly accredited labs to verify that Core Fiber meets all label claims and passes contaminant screenings for pesticides, heavy metals, and microbial contaminants.

Certifications
Manufactured in SQF, GMP, and FDA certified facilities in the U.S., and thoroughly tested for heavy metals and contaminants.

Mix one scoop with 8-12 oz of water or your favorite beverage (or food!) daily. For best results, take it consistently—ideally around the same time each day. Increase to 2-3 scoops daily for maximum effect.

New to fiber? Start with half a scoop for the first 4 days to let your body adjust, and make sure you’re drinking plenty of water.

Core Fiber comes in two flavors:

Unflavored - a neutral, tasteless powder designed to be mixed in anything without the grit or weird aftertaste. Most customers add this to beverages like water and coffee, or to snacks like yogurt and oatmeal. 

Strawberry Kiwi -  a delicious combo of sweet strawberry and tangy kiwi flavors. The perfect flavor boost for water, protein shakes, or yogurt—no grit, no weird aftertaste. 

CORE FIBER

CORE FIBER

$35.99

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4.8/5 Avg. Rating 
The 'Missing Piece' to Your-1 Routine.
Thousands of users have fixed their digestive issues & gained control over their gut health with Core Fiber.
More Regular
Ive been looking for an easy way to get more fiber in my diet. Core Fiber mixes smoothly with my morning smoothie (and even in just water, its not bad), and I notice I feel less sluggish during the day. My digestion seems more regular, and I'm not as bloated after meals. It's made a noticeable difference for me
E & Y
Verified Purchase
Truly Unflavored
Core Fiber is great and has become a part of my daily routine. Its a great and easy way to help me stay regular and unlike make others, doesn't taste horrible.
Danny G.
Verified Purchase
Perfect & Easy Fiber Supplement
Works perfectly! Dissolves really easy in a glass of water. Also works great with your daily protein shake or smoothie, has no taste and blends perfectly. Highly recommend.
Linda D.
Verified Purchase
Perfect Daily Fiber
This is such a great way to add fiber on a daily basis. So easy to add to oats, yogurt or smoothies and the taste is good/neutral. The powder is very dissolvable, so you don’t end up with the chunky texture of other supplements.
Emily B.
Verified Purchase
Fantastic Daily Fiber Boost
Been mixing this into my breakfast meals for the last month and am already seeing better digestion and more consistent energy throughout the day. Simple way to add more fiber without changing my routine!
Brenda
Verified Purchase
Better Than Psyllium Husk
Traded in my psyllium for this and it was a great move. Want to ensure I'm having at least 30g of fiber a day. I love how Core Fiber blends really easily in my smoothies and protein shakes and isn't grainy or chalky or nasty. Easy to eat, doesn't bulk my stomach, and is a great consistency that blends really well. Love it - this is definitely my new fiber going forward.
Sean K.
Verified Purchase
Great Addition to My Morning Smoothie!
I have been using for 2 months. Started more for the combination of prebiotic and fiber as an add on to my morning regimen. I feel less bloated and less upset stomach episodes. Feeling more energy is probably a combination of multiple changes- more water, no caffeine and healthy nutrition!
Jen B.
Verified Purchase