Momentous Fiber+ Prebiotic Fiber Powder (30 Serving Jar) - NSF Certified For Sport

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Regular price $39.95
Sale price $39.95 Regular price
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Three fibers your gut's been waiting for — full, steady, balanced.
  • Keeps you fuller, longer*
  • Builds a stronger microbiome*
  • Promotes digestive health and regularity*
  • NSF Certified for Sport®
  • 30 Servings Per Container
Free Shipping over $250. Get it shipped today.
HSA/FSA eligible

Pharmalynk Pro-Tip

Fiber+ was built to disappear into whatever you are already drinking, which makes a protein shake the easiest place to put it. Pair it with Momentous Grass Fed Whey Protein Isolate and get your daily fiber and 20 g of protein in the same glass. Both are HSA/FSA eligible and available on Autoship for 15% off every delivery.

† 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.
Momentous Fiber+ Prebiotic Fiber Powder (30 Serving Jar) - NSF Certified For Sport

Momentous Fiber+ Prebiotic Fiber Powder (30 Serving Jar) - NSF Certified For Sport

Regular price $39.95
Sale price $39.95 Regular price
Unit price
3-in-1 Formula for Comprehensive Gut Health Support

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.

Frequently asked questions

Find clear, helpful answers to the most common questions about Momentous Fiber+ Prebiotic Fiber Powder (30 Serving Jar) - NSF Certified For Sport.

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Fiber+ is a three-source blend delivering 6 g of dietary fiber per serving: psyllium husk for soluble fiber, rice bran hull for insoluble fiber, and Solnul resistant potato starch as a prebiotic. Each type does something different, which is why they are combined rather than used alone.
Psyllium husk increases stool hydration and eases motility. Rice bran hull adds bulk and supports smooth transit. Solnul resistant potato starch reaches the colon and ferments into short-chain fatty acids like butyrate, which support gut barrier integrity and beneficial bacteria such as Bifidobacterium and Akkermansia.
Mix one serving into 12 to 16 oz of your preferred liquid daily and drink shortly after mixing. From the jar that is 2 scoops; from a travel pack it is one full packet. Either way you get 6 g of fiber. It also blends into meals, smoothies, and protein shakes. Drink plenty of water throughout the day.
Yes. The 10-Travel Packs contain the same three-source fiber blend as the jar in a pre-measured single-serve packet, built for travel, the office, or anywhere scooping from a container is impractical.
The 30 Serving Jar is the better value for daily use at home. The 10-Travel Packs are pre-measured and portable, which makes them useful for travel or as a way to try the product before committing to a full jar. Many people keep both.
Most adults fall well below the recommended 25 to 38 g of fiber per day, depending on age and sex. Fiber+ is designed to help close that gap alongside food rather than replace dietary fiber.
Yes. Fiber+ is designed for daily use and contains only well-studied forms of fiber with no unnecessary additives. Consistency is what produces results.
Start with a smaller amount and increase gradually while keeping hydration up. Ramping too quickly is the most common cause of gas and bloating when adding fiber, and easing in avoids it.
Most people notice improvements in digestive regularity within 12 to 48 hours. Broader microbiome benefits typically build over 1 to 4 weeks of consistent daily use. Hydration and consistency matter more than dose.
Yes. Soluble psyllium increases stool hydration and eases motility while insoluble rice bran adds bulk and supports smooth transit, promoting regular bowel movements without harsh stimulants. The prebiotic resistant starch also supports microbiome balance, which can help reduce bloating and digestive discomfort over time.
Fiber+ can be taken alongside most supplements and protein shakes. Because soluble fiber slows digestion and can bind certain compounds, take it at least 2 hours before or after iron supplements and prescription medications unless your healthcare provider advises otherwise. Protein, creatine, and omega-3s are not a concern.
Yes. Every finished batch of Fiber+ is certified through NSF Certified for Sport, an independent program that verifies label accuracy and screens for hundreds of banned substances. Batches that fail to meet those standards do not ship. Momentous also makes Certificates of Analysis available for every batch.

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We started Momentous to bring credibility back to supplements. That means science-backed ingredients, expert formulation, and independent testing that verifies what’s inside every product. Guided by the Momentous Standard®, we don’t chase perfection—we pursue progress, raising the bar for sourcing, science, and testing in service of Performance for Life™.
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