Fiber+
30 Servings Per Container: $0.99/Serving
3 in 1 fiber: Soluble, insoluble, and prebiotic resistant starch to support satiety, blood sugar balance, and microbiome health.*
- Prebiotic resistant starch feeds beneficial gut bacteria*
- Helps maintain healthy blood sugar levels*
- Promotes digestive health and regularity*
Size: 30 Serving Jar
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3-in-1 Formula for Comprehensive Gut Health Support
Fiber+ delivers soluble fiber, insoluble fiber, and prebiotic resistant starch to activate gut health as the foundation for improved performance.
Prebiotic-Powered Performance
- Features Solnul® resistant potato starch to feed beneficial gut bacteria
- Supports production of short-chain fatty acids (SCFAs) to strengthen the gut barrier
- Promotes better nutrient absorption, energy metabolism, and recovery
Steady and Stable Energy
- Psyllium husk soluble fiber helps slow carb absorption
- Supports healthy blood sugar levels after meals
- Helps promote insulin sensitivity and metabolic stability
- Encourages steady energy without spikes and crashes
Supports the Gut-Brain Connection
- Supports the gut–brain connection through microbiome health
- Helps reinforce pathways tied to focus, mood, and stress response
- Promotes consistent mental clarity to support overall performance
End-to-End Digestive Support
- Combines soluble (psyllium) and insoluble (rice bran) fiber
- Supports digestive movement and stool bulk for regularity
- Promotes smoother digestion
How Fiber+ Works*
Builds a More Resilient Microbiome
Solnul® resistant potato starch reaches the colon and ferments into short-chain fatty acids (SCFAs) like butyrate, which support gut barrier integrity and beneficial bacteria such as Bifidobacterium and Akkermansia.
Key Ingredient: Solnul® Resistant Potato Starch
Supports Metabolic Stability
Soluble fiber slows carbohydrate absorption to help moderate post-meal blood sugar, while SCFAs support insulin sensitivity and metabolic efficiency.
Key Ingredients: Psyllium Husk + Solnul® Resistant Potato Starch
Supports the Gut–Brain Axis
SCFAs influence gut signaling pathways that help regulate inflammation and neurotransmitter activity, supporting communication between the gut and brain.
Key Ingredients: Solnul® Resistant Potato Starch + Psyllium Husk
Promotes Stool Hydration & Motility
Psyllium increases stool hydration and rice bran adds bulk, supporting smooth transit and consistent digestive comfort.
Key Ingredients: Psyllium Husk + Rice Bran
Mix 2 scoops (6g fiber) with 12-16 fl oz of your preferred liquid daily. Mix into meals, smoothies, or shakes.
Post-workout or evening intake often works well, especially if you train intensely earlier in the day.
Drink shortly after mixing for a lighter texture — Fiber+ will thicken over time.
Should not be taken within two hours before or after taking iron.
*Experts recommend a daily fiber intake of 25-38 grams depending on age and body composition
6g dietary fiber per two scoops of Fiber+.
Pure Cinnamon: Psyllium Husk, Resistant Potato Starch (Solnul®), Rice Bran Hull
Other Ingredients: Cinnamon Bark Powder, Sunflower Lecithin, Reb M*
Unflavored: Psyllium Husk, Resistant Potato Starch (Solnul®), Rice Bran Hull
Other Ingredients: Sunflower Lecithin
*Reb M is a natural, plant-based sweetener with zero glycemic response or aftertaste. Our Reb M is made from fermented rice and is 250× sweeter than sugar without bloating, 2.5× sweeter than monk fruit, and made sustainably with less land, water, and crop rotation.
Take Fiber+ at the time of day you can be most consistent — that’s what drives the biggest digestive and metabolic benefits. Morning hydration, with your first meal, in a protein shake, or evening wind-down all work.
You may notice easier, more regular stools within 12–48 hours, with fuller microbiome and metabolic benefits building over 1–4 weeks of steady use.
Expect improved bowel comfort, better stool quality, reduced bloating over time, and added satiety/steadier blood sugar when your intake is consistent.
There are 8 credible reviews and studies related to this product:
“Clinically shown to support beneficial gut bacteria at just 3.5g per day, including Bifidobacterium and Akkermansia.”
2. The impact of diet and lifestyle on gut microbiota and human health
“Prebiotics have been shown to improve bowel and immune function, metabolic health and mineral bioavailability in humans.”
3. The Health Benefits of Dietary Fibre
“The gut microflora functions as an important mediator of the beneficial effects of dietary fibre, including the regulation of appetite, metabolic processes and chronic inflammatory pathways.”
4. The Importance of Dietary Fiber for Metabolic Health
“Increased fiber intake was linked with lower total cholesterol, LDL cholesterol, triglycerides, body weight, and improved markers of metabolic health.”
"5 g/day increase in dietary fiber intake was associated with a 7% lower risk of all-cause mortality."
6. Beyond the gut: decoding the gut–immune–brain axis in health and disease
“SCFAs, which are produced primarily by microbial fermentation of dietary fiber, are essential regulators of innate and adaptive immunity.”
7. Role of brain-gut-muscle axis in human health and energy homeostasis
“SCFAs bind to receptors that help stimulate secretion of gut hormones like GLP-1 and PYY that communicate with the brain and influence appetite and energy balance.”
8. The gut-brain axis: interactions between enteric microbiota, central and enteric nervous systems
“One of the main products of bacterial metabolism are short-chain fatty acids (SCFAs)… that are able to stimulate … mucosal serotonin release and influence memory and learning processes.”
- Supports recovery after intense training
- Helps maintain gut integrity and digestive health
- Fuels immune function during times of stress
- Supports brain, heart, and joint health with no fishy aftertaste
- Aids recovery and reduces inflammation from training or stress
- Norwegian sourced + tested for heavy metals and purity
- Activates pathways for optimal energy usage
- Promotes cardiovascular health
- Improves cellular and mitochondrial efficiency
- Supports calcium absorption for bone strength and muscle function
- Promotes immune health and inflammation balance
- Delivered in organic extra virgin olive oil for superior bioavailability
- Supports lean muscle mass and recovery*
- High in leucine to build and repair muscle faster*
- No gums, fillers, or artificial sweeteners
Frequently Asked Questions
Fiber plays a foundational role in performance and longevity because it supports the systems that make everything else work.
The prebiotic fibers found in our 3-in-1 Fiber+ formula feed beneficial gut bacteria, which produce short-chain fatty acids (SCFAs) that strengthen the gut barrier and improve nutrient absorption. Soluble fiber helps stabilize blood sugar and energy, supporting metabolic health and insulin sensitivity over time.
Higher fiber intake is also consistently linked to lower risk of cardiovascular disease and all-cause mortality, yet most people don’t get enough daily. Supporting your fiber intake helps ensure your training, nutrition, and recovery efforts deliver their full return.
Yes. Fiber+ is designed to support consistent, comfortable digestion — even with a busy, high-performance lifestyle.
It combines soluble fiber (psyllium) to increase stool hydration and ease motility with insoluble fiber (rice bran) to add bulk and support smooth transit. Together, they promote regular bowel movements without harsh stimulants.
The addition of prebiotic resistant starch also supports microbiome balance, which can help reduce bloating and digestive discomfort over time. When used consistently and paired with adequate hydration, Fiber+ helps keep digestion steady so your schedule and your training stay uninterrupted.
Most people notice improvements in digestive regularity within 12–48 hours, especially if increasing overall fiber intake.
Full microbiome and metabolic benefits — including steadier energy and improved gut resilience — typically build over 1–4 weeks of consistent daily use.
As with any fiber supplement, hydration and consistency are key to getting the best results.
Yes. Fiber+ is designed for daily use as part of a consistent performance and longevity routine.
Dietary fiber is an essential nutrient, and most adults fall well below recommended daily intake levels, experts recommend 25-38 grams of fiber per day depending on age and sex. Supplementing helps close that gap in a reliable way.
Fiber+ contains soluble fiber, insoluble fiber, and prebiotic resistant starch — all well-studied forms of fiber — and is made to The Momentous Standard® with no unnecessary additives. For best tolerance, start with a smaller amount if you’re new to fiber and increase gradually while maintaining good hydration.
Yes — Fiber+ can be taken with most supplements and protein shakes as part of your daily routine.
Because soluble fiber slows digestion, it may slightly delay the absorption of certain nutrients — which is part of how it helps stabilize blood sugar and energy. For most vitamins and supplements like protein, creatine, and omega-3s, this is not a concern.
However, because soluble fiber can slow digestion and bind to certain compounds, it may reduce absorption of iron and some medications. To be safe, take fiber at least 2 hours before or after iron supplements or prescription medications unless your healthcare provider advises otherwise.
Yes, all of our products are third-party tested. But that’s not enough for us. That's why we created The Momentous Standard®: a higher bar for science, sourcing, and verification, backed by independent proof you can trust.
Every finished batch of Fiber+ is certified through NSF Certified for Sport®, a respected independent program that verifies label accuracy and screens for hundreds of banned substances. If a batch fails to meet these independent standards, it does not ship, because only third-party certification can truly back that promise. We also take transparency a step further by publishing third-party test results via Light Labs on individual product pages and making Certificates of Analysis (COAs) available for every batch.
We earn trust the hard way, by proving quality at every step, on every batch, with no shortcuts.
- Taste
- Mixability
- Texture
- Digestive Effects
- Satiety
- AHAnn H.Verified Buyer3 minutes agoReviewingFiber+Rated 5 out of 5 starsGreat product!
This has been a great addition to my daily routine. Great flavor and no bloating. Keeping things regular🙂
- SCSimon C.Verified BuyerProduct Standouts Ease of Use, Taste + Texture39 minutes agoProduct Standouts Ease of Use, Taste + TextureReviewingFiber+Rated 5 out of 5 starsGreat addition to my daily routine
There are 2 things I need to focus on daily in regards to my diet - consuming adequate fibre & protein. Fibre + takes care of the fibre intake and also enhances regular unstressed daily bowel motions. Hopefully my colon is not a health issue I need to be overly concerned about going forward.
- AAugust6 hours agoReviewingFiber+Rated 5 out of 5 stars5 Stars
Great product! I really like the cinnamon flavor its great for my yogurt bowls and smoothies!
- CChrisYesterdayReviewingFiber+Rated 5 out of 5 stars5 Stars
Fiber+ cinnamon mixed in with the vanilla whey is a gamechanger!
- BSBrianne S.Verified BuyerProduct Standouts Taste + Texture, Trust and TransparencyYesterdayProduct Standouts Taste + Texture, Trust and TransparencyReviewingFiber+Rated 5 out of 5 starsGreat flavor, easy to digest
The cinnamon flavor makes taking this fiber supplement easy to take regularly. I’m glad I followed the recommended dosage for starting out, I didn’t have much bloating or discomfort increasing my fiber intake.
