DIETARY FIBER – ENDORSED BY EXPERTS FROM:
FIBER DEFICIENCY IS A
Modern Epidemic
Getting enough fiber is hard. Getting the right fiber is even harder.
Most diets fall far short of the fiber needed for real digestive and metabolic change.
And most solutions rely on a single fiber type — with limited, short-term results.
You don't just need more fiber. You need a complete fiber.
SINGLE-INGREDIENT FIBER CAN'T DO THIS
5x the fiber diversity and 2x the fiber per serving of leading options — designed to give your body what it needs to thrive.
Multiple fiber types working together for broader, full-body benefits
Feeds the good bacteria that drive digestion, energy, and gut health
Supports smooth digestion and complete gut function
100% clean fiber your body can actually use
Delivers deep gut support that builds over time, not just quick relief
Blends instantly into any drink — smooth, clean, no texture
5 Clinically-Studied Ingredients
ONE COMPLETE GUT SOLUTION
Different fibers do different jobs. Our Active Fiber Blend combines multiple prebiotic ingredients to support digestion, metabolism, and energy—not just regularity.
Green Banana Resistant Starch
Fuels beneficial gut bacteria deep in the colon.
Healthier microbiome
Better digestion
Gut–brain support
Acacia Fiber
Feeds good gut bacteria and supports digestive comfort.
Less bloating
Improved regularity
Easier digestion
Oat Beta Glucan
Slows digestion to support metabolic and heart health.
Lower cholesterol
Steadier energy
Stable blood sugar
Chicory Root
Inulin
Promotes regularity and gut balance.
Regular BMs
Reduced gas
Gut balance
Resistant
Potato Starch
Supports insulin sensitivity and natural GLP-1 production.
Fewer cravings
Metabolic support
Energy stability
Green Banana Resistant Starch
Fuels beneficial gut bacteria deep in the colon.
Healthier microbiome
Better digestion
Gut–brain support
Acacia Fiber
Feeds good gut bacteria and supports digestive comfort.
Less bloating
Improved regularity
Easier digestion
Oat Beta Glucan
Slows digestion to support metabolic and heart health.
Lower cholesterol
Steadier energy
Stable blood sugar
Chicory Root
Inulin
Promotes regularity and gut balance.
Regular BMs
Reduced gas
Gut balance
Resistant
Potato Starch
Supports insulin sensitivity and natural GLP-1 production.
Fewer cravings
Metabolic support
Energy stability
WHAT TO EXPECT WITH DAILY USE
DAY 7
Fiber is improving stool consistency, helping digestion move smoothly.
- Improved regularity
- Easier BMs
- Smoother digestion
Day 14
Prebiotic fermentation increases, reducing gas buildup and helping normalize digestion.
- Less bloating
- Less gas
- Fewer cravings
30 Days +
A healthier gut microbiome begins supporting energy balance and the gut–brain connection.
- Steadier energy
- Better mood
- Improved nutrient absorption
90 Days +
Long-term gut support starts influencing metabolism, immunity, and overall health.
- Healthier cholesterol
- Stronger immune function
- Metabolic health support
DAY 7
Fiber is improving stool consistency, helping digestion move smoothly.
- Improved regularity
- Easier BMs
- Smoother digestion
Day 14
Prebiotic fermentation increases, reducing gas buildup and helping normalize digestion.
- Less bloating
- Less gas
- Fewer cravings
30 Days +
A healthier gut microbiome begins supporting energy balance and the gut–brain connection.
- Steadier energy
- Better mood
- Improved nutrient absorption
90 Days +
Long-term gut support starts influencing metabolism, immunity, and overall health.
- Healthier cholesterol
- Stronger immune function
- Metabolic health support
the only daily fiber for whole body health
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Consistent, Easy BMs
Restore your natural digestive rhythm without the strain
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Less Bloating
Reduce gas buildup and pressure for a lighter, comfortable feeling
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Healthy Metabolism
Support appetite control & blood sugar balance to reduce cravings
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All Day Energy
Support mental clarity and avoid energy crashes with stabilized blood sugar
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Gut Microbiome Support
Nourish beneficial bacteria for long-term digestive health
Most Gut Products Only Treat Symptoms
Ours Works at the Core
Fiber/Serving
6g
2–3g
2–4g
Calories/Serving
15
25–40
30–40
Sugar/Serving
0g
3–5g
3–6g
Fiber Diversity
5 Types
1 Type
1–2 Types
Prebiotic Fiber
100%
Minimal
Minimal
Soluble + Insoluble Fiber
Resistant Starch
Gut Breakdown Speed
Slow & Gentle
Fast & Uneven
Minimal
Artificial Ingredients
None
Sometimes
Often
THE EASIEST WAY TO MAKE FIBER A HABIT
Gut Microbiome + Performance Nutrition Experts
Our Scientific Advisory Board
Dr. Alex Carrasco, MD
Nutrition, Integrative & Functional Medicine
Dr. Ava Mainieri, PhD
Dir. of Clinical Outcomes at Midi Health
Dr. Keith Garleb, PhD
Abbott Labs, Center for Nutrition
Amanda Phillips, RD, CSSD
Chief Performance Innovation Officer at Exos
Frequently Asked Questions
Trusted by thousands looking to improve digestion, energy, and overall health.
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We're fast! Orders typically ship within 24 hours and on average arrive 2 days later. You could be experiencing the amazing health benefits just 3 days from now.
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Each bottle comes with 30 servings of Core Fiber plus a measuring scoop. We recommend ordering on subscription. You get better pricing, and we'll make sure you're always stocked up so you never miss a day.
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While the timeline for experiencing the benefits of Core Fiber can vary from person to person, most people generally start to feel the effects within 1-2 hours. After 1-2 weeks of consistent daily use, you should experience noticeable health benefits. Continued consistent daily use is essential for long-term results.
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We want you to have the best experience with Core Fiber. Returns rarely happen, but we do have a great policy in place. You can return any unopened bottles within 30 days of your first order for a refund or exchange. For all refund requests, you will receive the full value of your order, less $5 return shipping. Submitting a return is easy, and we accept all returns in policy. No questions asked. If you have specific questions for your returns or exchange circumstance, our Support team is happy to help! You can reach them at help@corefiber.co. This policy applies only to your initial purchase.