Your fiber intake could use a boost!

A low-fiber diet impacts digestion, energy, cravings, and gut health. Just one daily scoop of Core Fiber makes it easy to get the fiber you need, keeping you regular, energized, and feeling your best!

Get Your DAILY Core Fiber

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  • servings every 4 weeks
  • FREE avg 2-day shipping
  • Pause or cancel anytime
  • 30-day money-back guarantee
Try Once $49.99 $1.78/day

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Water
Coffee
Smoothie
Oatmeal
Yogurt
  • Ships within 24 hours Mon-Fri
  • FREE avg 2-day shipping
  • 30-day money-back guarantee

Use this accordion to add info such as Materials, Sizing, Features, Shipping and Returns policies

Use this accordion to add info such as Materials, Sizing, Features, Shipping and Returns policies

Use this accordion to add info such as Materials, Sizing, Features, Shipping and Returns policies

Use this accordion to add info such as Materials, Sizing, Features, Shipping and Returns policies

Use this accordion to add info such as Materials, Sizing, Features, Shipping and Returns policies

4.9 Average Rating

Word On The Street

“Our ActiveFiber blend uses both soluble and insoluble fibers to synergistically regulate your metabolism and keep your digestion smooth and steady. More than just a fiber supplement, Core Fiber is your gut's ultimate performance fuel.”

Tiana

“Our ActiveFiber blend uses both soluble and insoluble fibers to synergistically regulate your metabolism and keep your digestion smooth and steady. More than just a fiber supplement, Core Fiber is your gut's ultimate performance fuel.”

Tiana

“Our ActiveFiber blend uses both soluble and insoluble fibers to synergistically regulate your metabolism and keep your digestion smooth and steady. More than just a fiber supplement, Core Fiber is your gut's ultimate performance fuel.”

Tiana

No additives. Just fiber that works harder than your spin class.

Our ActiveFiber prebiotic blend contains 5 powerful soluble and insoluble fiber strains that work together to nourish your gut over time.

The Stats That Matter

Superior Fiber for Superior Results

Core Fiber™ isn’t for those who accept mediocrity, who want to blend in, or who are okay with being average. We’re here for the doers, the strivers, the unapologetically ambitious.

Gut Microbiome + Performance Nutrition Experts

OUR SCIENTIFIC ADVISORY BOARD

Customer Reviews

Based on 94 reviews
88%
(83)
7%
(7)
0%
(0)
2%
(2)
2%
(2)
C
Carolina Goulart
Excellent product and service

The product arrived quickly and in perfect condition. The quality is excellent and exactly as described in the listing.
I�m very satisfied with this purchase � it met my expectations and shows great value for the price. Definitely a product I would recommend.

D
Daniel Gebbens
Core fiber has become a part of my daily routine

Core fiber has become a part of my daily routine. It’s a great product that is a very easy way to make sure I’m getting the fiber I need.

D
Danny G

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, doesnt taste horrible.

E
E & Y
Easy way to add more fiber to my day

Ive been looking for an easy way to get more fiber in my diet, and Core Fibers 5-fiber blend has been a great addition. It mixes in smoothly with my morning smoothie (and even in just water, its not bad), and Ive noticed I feel less sluggish during the day. My digestion seems more regular, and I dont feel as bloated after meals. I also like that it has a mix of different fibers instead of just one type. Overall, its been simple to work into my daily routine and has made a noticeable difference for me