The Fiber Your Routine is Missing
A 3-in-1 prebiotic fiber blend that supports a diverse gut microbiome, steady blood sugar, and daily regularity — the foundation behind sustained energy and long-term health.
Fiber+
Fiber+
Most Fiber Does One Thing.
Fiber+ Does Three.
Your gut needs more than one kind of fiber.
Resistant starch feeds the microbiome. Soluble fiber steadies blood sugar. Insoluble fiber supports daily regularity. Fiber+ delivers all three in one daily input.
Resistant Starch
· PotatoesFeeds the gut bacteria behind metabolic and immune health.
Prebiotic Resistant Starch
· Potato - DerivedA clinically studied prebiotic that bypasses digestion and feeds the beneficial bacteria in your large intestine. Those bacteria produce short-chain fatty acids — the compounds linked to a stronger gut barrier, steadier blood sugar, and lower inflammation.
Soluble Fiber
· Psyllium HuskSteadies blood sugar and supports cardiovascular health
Soluble Fiber
· Psyllium HuskForms a gel in the gut that slows glucose absorption and binds cholesterol on its way out. The result: flatter blood sugar curves, more stable energy through the day, and one of the most consistently cited dietary inputs for long-term heart health.
Insoluble Fiber
· Rice BranKeeps the system moving — cleanly, consistently, daily.
Insoluble Fiber
· Rice BranAdds bulk and supports smooth transit time without harsh stimulants or laxative effects. The quiet infrastructure of a high-fiber diet — the kind of benefit you only notice when it's missing.
Gut health is performance health.
The microbiome shapes nearly every system you train for. Fiber+ is the first 3-in-1 formula built to activate it.
Microbiome Diversity
Feeds the beneficial bacteria linked to immune and metabolic resilience.
Steady Energy
Supports stable blood sugar and sustained energy across the day.
Daily Regularity
Promotes comfortable, consistent digestion without stimulants.
Long-Term Health
Higher daily fiber intake is associated with better cardiovascular and longevity outcomes.
Expert-Backed Formula
Fiber+ was developed alongside top experts in human performance including Arnold Schwarzenegger to support the foundation of how you feel and perform every day.
With three types of fiber working together, it promotes better digestion, steady energy, and long-term health.
Science in Action
Developed with leading experts in human performance—from Ph.D.s to elite athletes—to translate cutting-edge science into real-world results. Trusted by 150+ professional and collegiate teams.
Only the Essentials
No fillers, no artificial sweeteners, no shortcuts. Just high-quality ingredients, fully transparent labels, and formulas built to work.
Rigorous Testing
NSF Certified for Sport® and held to the standards of professional and Olympic organizations. Every batch is tested for purity and label accuracy, and screened for 280+ banned substances.
Frequently Asked Questions
What we get asked most about Fiber+ — answered directly.
Probably, yes. Even diets built around whole foods commonly fall short of the 25–38 grams of daily fiber the research supports — especially high-protein, low-carb patterns where fiber-dense foods get crowded out. Fiber+ is built to close that gap without compromising the rest of your nutrition.
Most fiber supplements isolate one form — usually psyllium or inulin. The three fibers in Fiber+ each work a different system: resistant starch feeds the microbiome, soluble fiber supports blood sugar and cardiovascular health, and insoluble fiber supports daily regularity. Together, they deliver what a single fiber can’t.
Most people notice changes in digestion within 12–48 hours. The deeper benefits — microbiome shifts, steadier energy, improved metabolic markers — build over 1–4 weeks of consistent daily use. As with any fiber, hydration and consistency matter.
Yes. Fiber+ pairs cleanly with protein, creatine, omega-3s, and most daily supplements. Because soluble fiber can slow absorption of certain compounds, we recommend taking it at least two hours before or after iron supplements or prescription medications, unless your physician advises otherwise.
The short answer: however fits your routine. Fiber+ is designed to be versatile — it mixes easily into almost anything, so there's no wrong way to take it.
Most popular ways customers use it:
- In a protein shake or smoothie — the cinnamon flavor pairs especially well with vanilla protein (customers say it tastes like horchata or a coffee cake)
- Stirred into oatmeal or overnight oats — adds a natural cinnamon flavor without changing the texture
- Mixed into yogurt or applesauce — a quick, no-prep option that works great as a snack
- In almond milk or juice — customers say almond milk makes it taste like Cinnamon Toast Crunch cereal milk
- In plain water — straightforward and easy; just drink it within a few minutes of mixing before it thickens
Any time of day works. Some customers take it first thing in the morning, others before dinner to help with satiety, and some in the afternoon as a bridge between meals. The most important thing is finding a consistent time that's easy to stick to — most customers notice a difference within the first week.
If you're new to fiber supplements, start with one scoop for the first few days to let your body adjust, then work up to the full serving. And make sure to drink plenty of water throughout the day — it helps the fiber do its job.
Yes. Every batch is NSF Certified for Sport® — independently verified for label accuracy and screened against hundreds of banned substances. Test results are published openly via Light Labs, and Certificates of Analysis are available for every batch on our site.
Fiber+
Fiber+
