NeuroFiber bar

#1 Neurologist Recommended Fiber Bar

Irregularity. Bloating.
Brain fog. Poor sleep.
This is for you.

One bar a day. Better regularity, less bloating, more energy, and a clearer head — from whole food ingredients your gut was designed to eat.

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4.8★ · 39 verified reviews
14 fiber sources
Clinically studied
Hear from others ↓

Real customers · Real results

In their own words

Five customers. Five stories. One bar a day.

“I can think straight in front of my middle schoolers again.”

— Kerrie

“Allergen friendly, gut-brain benefits, and it actually tastes good? I'm in.”

— Christa B.

“11g of fiber. Keeps me full till dinner.”

— Melissa R.

“We have one brain in this life. Let's treat it right.”

— Jen P.

“The greatest non-medical treatment I've found.”

— Jeff L.

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The #1 Neurologist Recommended Fiber Bar

In a clinical pilot study, adults living with Parkinson's disease — one of the most demanding gut health populations in medicine — ate one NeuroFiber bar a day.

If it works for people facing the most severe gut-brain challenges, imagine what it can do for you.

The Results — After Four Weeks
75%
reported improved bowel regularity
87%
reported improved daily well-being
67%
reported better sleep quality

*Based on a 4-week pilot clinical study in adults with Parkinson's disease. ClinicalTrials.gov NCT07127120 →

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Meet the bar

Made for your gut. And your brain.

A whole food bar with 14 diverse fiber sources — designed to feed your microbiome properly, support gut health, and nourish the gut-brain connection you've been ignoring.

NeuroFiber Mix Box — 14 prebiotic fiber bars
Most Popular

Mix Box — 14 bars

Both flavors in one box — the easiest way to find the taste you'll look forward to every day.

Dark Chocolate Cherry and Lemon Cranberry — made with walnuts, dates, chia seeds, pumpkin seeds, oats, and 14 diverse whole food fiber sources your gut was designed to eat.

11g
Fiber per bar
14
Fiber sources
4g
Protein

Most fiber products use 1–2 sources. 14 means more of your gut gets fed — and more of your symptoms get addressed.

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Or choose your flavor:
Why fiber diversity matters

Most fiber supplements only solve part of your problem — because they only feed part of your gut.

Different parts of your gut control different things — regularity, energy, mood, sleep. NeuroFiber's 14 whole food fibers are designed to nourish all three zones — so more of your symptoms get addressed, not just one.

Gut fermentation zones diagram
1
2
3
Hover a number to explore each gut zone Tap a number to explore each gut zone
1
Zone 1 — where digestion starts

Fast-fermenting fibers get to work here first, kickstarting your gut bacteria and supporting regularity and digestive comfort.

Soluble Corn Fiber Sunfiber® Green Tea Extract
2
Zone 2 — where most bacteria live

Slower-fermenting fibers fuel a broader range of bacteria here, producing short-chain fatty acids that support your gut lining, immune system, and daily energy.

Solnul™ Rice Bran Walnuts Almonds Cashews
3
Zone 3 — where most supplements never reach

Only the most complex fibers make it here intact. These bulking fibers support long-term regularity and the kind of deep gut health that single-source fiber products never reach.

Resistant Corn Starch Chia Seeds Flax Seeds Pumpkin Seeds Dates GF Whole Grain Oats

*Different fiber types ferment at different rates and locations in the gut. NeuroFiber's 14 whole food sources are selected to cover all three zones.

Why NeuroFiber

Feel better now. Invest in your brain for later.

What happens in your gut shows up in your brain — every single day. NeuroFiber is built to address both, not just one.

Beth Statkus, food scientist and NeuroFiber co-founder

Clinically studied — not just claimed

Developed by a food scientist and studied in a 4-week clinical pilot. Participants reported better regularity, improved daily well-being, and better sleep quality — starting with one bar a day.

Backed by a registered clinical study. ClinicalTrials.gov NCT07127120.
Close-up of NeuroFiber bars showing whole-food ingredients

Real food. Actually delicious.

A bar made with whole food ingredients — walnuts, dates, cranberries, oats, chia — that you'll actually look forward to eating every day.

Because consistency is what drives results.
The gut-brain connection

Good for your gut today. Good for your brain tomorrow.

With omega-3s, green tea extract, and brain-healthy antioxidants alongside the fiber blend — designed to support the gut-brain connection, not just digestion.

Your gut and brain are always talking. NeuroFiber helps both sides of the conversation.
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NeuroFiber vs. Traditional Fiber Powders

Traditional fiber powders do one thing. NeuroFiber is the next generation.

Same constipation relief — plus 14 whole food fiber sources, gut-brain support, and ingredients your body was designed to eat. The more you take it, the better you feel.

NeuroFiber Traditional Powders
NeuroFiber Dark Chocolate Cherry fiber bar Fiber powder supplement
Relieves constipation Relieves constipation
11g of fiber per bar Less than 4g per serving
Feeds your whole gut — 14 diverse fiber sources Single-source fiber only
Supports clearer thinking and better energy No gut-brain focus
Real whole food — no artificial sweeteners Contains artificial additives
Actually tastes good Thick, chalky texture

Why settle for a product that only relieves constipation when you can have one that helps your gut at the same time?

Clinically tested in a 4-week pilot study. ClinicalTrials.gov NCT07127120 →

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Start today

Your gut has been waiting long enough.

One bar a day. Whole food ingredients. Clinically studied. Pick the box that's right for you.

NeuroFiber Dark Chocolate Cherry

Dark Chocolate Cherry — 14 bars

Rich and dessert-like. Pairs with coffee. A daily treat you'll crave.

$40.99

Shop Chocolate Cherry
NeuroFiber Lemon Cranberry

Lemon Cranberry — 14 bars

Bright and refreshing. A great morning bar with your coffee or tea.

$40.99

Shop Lemon Cranberry
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Not ready for a full box?

Try the 10-day starter kit — a low-commitment way to see how NeuroFiber feels.

Try the 10-day kit — $15 →

Questions? Contact us · Results based on a 4-week pilot clinical study (ClinicalTrials.gov NCT07127120). Individual results may vary.

Real ingredients. Nothing hidden.

Fiber as nature intended.

Diverse, plant-based whole food ingredients — real food your gut was designed to eat.

Walnuts

Walnuts

Supports long-term brain + cognitive health

Almonds

Almonds

Supports sustained energy + gut lining

Cashews

Cashews

Supports magnesium + nerve function

Chia Seeds

Chia seeds

Supports gut motility + brain omega-3s

Flax Seeds

Flax seeds

Supports bowel regularity + omega-3s

Pumpkin Seeds

Pumpkin seeds

Supports zinc + mood via gut-brain axis

Dates

Dates

Natural prebiotic fiber + sustained energy

Whole Grain Oats

Gluten-free whole grain oats

Supports gut microbiome + steady glucose

Prebiotic Fiber Blend

Prebiotic fiber blend

Supports long-term gut regularity + microbiome diversity

Solnul®, Soluble Corn Fiber, Sunfiber®, Rice Bran, Resistant Corn Starch

Green Tea Extract

Green tea extract

Supports focus + antioxidant protection

Vitamins D3, B12, E

Vitamins D3, B12, E

Supports immunity, nerve health + cellular protection

Lemon

Lemon

Bright citrus flavor

Cranberry

Cranberries

Tart antioxidants + natural sweetness

Dark Chocolate

Dark chocolate

Potent chocolate polyphenols + rich cocoa flavor

Cherry

Cherries

Natural fruit sweetness

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.