Clinical Formulary
The Fibermaxxing
Vetted Stack
Every product reviewed for ingredient transparency, fiber diversity, third-party testing, and microbiome impact. No fillers. No guesswork.
Advanced Synbiotics & Precision Prebiotics
Highest clinical evidence. Multi-strain diversity. Targeted microbiome impact.
A highly soluble blend of partially hydrolyzed guar gum (PHGG) and inulin-type fructans. Dissolves without grit — the cleanest daily driver for microbiome support. NSF Certified for Sport.
- ✓PHGG — clinically studied, zero-bloat soluble fiber
- ✓NSF Certified — pharmaceutical-grade manufacturing
- ✓Completely flavorless — disappears in coffee or smoothies
A 3-in-1 organic powder combining psyllium husk, acacia fiber, and chicory root inulin — covering insoluble bulk, gentle prebiotic fermentation, and soluble viscosity in a single unflavored scoop.
- ✓Covers all three fiber mechanisms in one product
- ✓USDA Organic, 3rd-party lab tested, Non-GMO
- ✓2 lb bag — exceptional cost-per-serving
Psyllium-free prebiotic fiber from 5 organic superfoods: acacia, orange peel, baobab, apple peel, and cranberry. Ideal for psyllium-sensitive users. No grit, no taste.
- ✓Psyllium-free — excellent for psyllium-sensitive users
- ✓5g prebiotic fiber per serving from whole food sources
- ✓USDA Organic, Vegan, Gluten-Free, Kosher certified
Foundational Bulk Fibers
The backbone of any aggressive fiber protocol. Proven, high-dose, daily drivers.
Finely ground, certified organic psyllium husk in a 24 oz bag. Unflavored, keto and paleo compatible — ideal for mixing into liquids or fiber-rich baking.
- ✓Finely milled for superior mixability — no grit chunks
- ✓USDA Organic, Non-GMO, Keto/Paleo certified
- ✓Versatile for beverages AND fiber-rich baking
100% all-natural psyllium husk with zero sugar, zero fillers. A medical-grade baseline with 90 servings per container. Pharmacist-recommended and clinically validated.
- ✓No sugar, no fillers — 100% pure psyllium
- ✓Pharmacist-recommended — top-tier in clinical rankings
- ✓90-serving economy size — best cost per gram of fiber
Whole husk (not powdered) for maximum intact fiber architecture. USDA Certified Organic. Pre + probiotic formula supports both soluble and insoluble fiber intake.
- ✓Whole husk — retains more natural fiber structure
- ✓Pre & probiotic formula in one product
- ✓Available in flavored variants for compliance
The OG bulk psyllium brand. Large-format 20 oz with no sugar, no artificial sweeteners. Non-GMO, Gluten-Free, Vegan. Straight-forward efficacy at unbeatable cost per serving.
- ✓20 oz economy size — maximum fiber per dollar
- ✓No sweeteners, no additives — pure coarse husk
- ✓Trusted brand with decades of clinical use
Capsule & Convenience Formats
For travel, dosing precision, or texture-sensitive users.
2,000mg per serving across psyllium husk, inulin, and chia seed in a 360-capsule supply. The 3-in-1 capsule format for people who refuse powders but still want fiber diversity.
- ✓3-in-1 fiber matrix: psyllium + inulin + chia
- ✓360 caps — 120-day supply at 3 caps/day
- ✓Plant-based, Non-GMO, Gluten-Free, 3rd party tested
700mg psyllium + 50mg apple pectin per capsule. The addition of pectin adds a viscous soluble fiber mechanism relevant for cholesterol management and gut wall integrity.
- ✓Pectin addition — superior to psyllium-only capsules
- ✓360 veggie caps — reliable NOW Foods quality standard
- ✓Excellent for cardiovascular + digestive dual targeting
The highest-dose psyllium capsule on Amazon at 3,000mg per serving. 500 veg caps with naturally occurring prebiotics and probiotics. For the committed protocol user.
- ✓3,000mg/serving — highest dose capsule format available
- ✓500-capsule supply — best bulk value in capsule category
- ✓Includes natural prebiotics and probiotics
The name everyone recognizes — legitimizes fiber supplementation for new starters. 300-capsule supply with 4-in-1 claims: digestive health, cholesterol, blood sugar, and appetite.
- ✓Widely recognized — ideal for gift guides or beginners
- ✓4-in-1 health claims across four body systems
- ✓High Amazon conversion rate — familiar brand trust
Functional Foods & Invisible Fiber Boosters
Integrate fiber into existing meals. Zero-friction compliance.
Wheat dextrin that is genuinely invisible in any liquid — hot or cold — without changing taste, texture, or color. Best-in-class for compliance in non-supplement takers.
- ✓Truly dissolves with zero texture change in any beverage
- ✓Works in hot coffee — unlike psyllium which gels
- ✓Gentle fermentation — minimal gas vs. inulin
Psyllium + chia seed + inulin + acacia in a raw organic 2 lb powder. 8g per serving across four distinct fiber types. 113-day supply at 2 scoops/day.
- ✓4 fiber types: psyllium, chia, inulin, acacia
- ✓113-day supply — best cost-per-day in the category
- ✓Mixes into smoothies, oatmeal, yogurt, and desserts
5g psyllium fiber in a cinnamon snack cracker format. The only mainstream fiber product that tastes like food. High click-through due to impulse appeal — a gateway product for new converts.
- ✓5g fiber per serving in a satisfying cracker format
- ✓Perfect gateway product — no supplement learning curve
- ✓Satisfies hunger — dual fiber + appetite benefit
Tools, Tracking & Fiber-Maxxed Kitchen
Everything your protocol demands beyond supplements.
Certified low-FODMAP PHGG — the clinical gold standard for IBS management. Dissolves completely in any beverage with zero thickening or taste. Multi-university clinical trial backing.
- ✓Certified Low-FODMAP — verified safe for IBS protocols
- ✓Zero thickening — disappears in any hot or cold liquid
- ✓Multi-university clinical trial backing for PHGG specifically
A dedicated shaker bottle dramatically improves daily fiber compliance. Stainless mixing ball breaks up psyllium gel, storage compartment holds pre-measured doses.
- ✓Stainless steel mixing ball breaks up psyllium gel clumps
- ✓Storage compartment for daily pre-measured doses
- ✓BPA-free, dishwasher safe — daily use durability
Volumetric scoops for psyllium are notoriously inaccurate. A 0.1g precision scale is the only way to accurately hit 25–35g/day of fiber across multiple products.
- ✓0.1g precision — accurate fiber gram tracking
- ✓Tare function for bowl/cup weighing workflows
- ✓Pairs directly with the Fibermaxxing Calculator
Batch-prep up to 5 days of fiber-dense overnight oats with psyllium, chia, and oat beta-glucan in 15 minutes on Sunday. BPA-free glass — no plastic leaching.
- ✓Wide-mouth 16 oz perfect for overnight oat protocols
- ✓BPA-free glass — no plastic leaching into fiber slurry
- ✓12-pack allows full weekly prep batch in one session
The Fibermaxxing Stack Protocol
How to build your daily regimen — start low, ramp over 2–3 weeks.
Phase 1 — Week 1–2
Foundation
Start with 5g/day of pure psyllium husk. Drink 16 oz of water with each dose. Let your microbiome adapt without triggering fermentation overload.
Phase 2 — Week 3–4
Diversify
Add a 3-in-1 blend as a second dose. Now you're feeding multiple microbial populations. Total daily fiber: 10–15g from supplements.
Phase 3 — Month 2+
Stack & Precision
Layer in Thorne FiberMend or Sunfiber PHGG for clinical-grade prebiotic coverage. Use your scale to hit 25–35g/day total.
Advanced
Invisible Integration
Add Benefiber to your coffee. Blend chia + fiber into smoothies. Distribute fiber across 3+ meals for maximum transit time optimization.