Fiber+

Your gut is the foundation for everything—how well you absorb nutrients, stay focused, recover from training, and remain energized day to day. Fiber+ delivers all three essential fiber types—soluble, insoluble, and prebiotic resistant starch—to support smoother digestion, fuel a healthy microbiome, and promote metabolic and mental balance. It’s fiber, engineered for performance—not just regularity.

Supplement Facts



$39.99
$39.99
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  • Prebiotic: Solnul® feeds beneficial gut bacteria; supports SCFA production and gut barrier; better nutrient absorption, energy metabolism and recovery
  • Steady energy: psyllium slows carb absorption; supports post-meal blood sugar and insulin sensitivity; no spikes or crashes
  • Gut–brain: supports pathways tied to focus, mood and stress response
  • Digestive: soluble plus insoluble fiber for movement, stool bulk and regularity
  • Microbiome: Solnul® ferments in the colon into SCFAs like butyrate, supporting gut barrier integrity and Bifidobacterium / Akkermansia
  • Metabolic: soluble fiber moderates post-meal blood sugar; SCFAs support insulin sensitivity
  • Gut–brain axis: SCFAs influence signalling pathways regulating inflammation and neurotransmitter activity
  • Motility: psyllium increases stool hydration, rice bran adds bulk

Mix 2 scoops (6 g fiber) with 12–16 fl oz of preferred liquid daily. Works in meals, smoothies or shakes.

Post-workout or evening often works well, especially after intense morning training. Drink shortly after mixing — it thickens over time.

Interaction: do not take within two hours before or after iron. Experts recommend 25–38 g fiber daily depending on age and body composition.

Actives (all flavors): psyllium husk, resistant potato starch (Solnul®), rice bran hull — 6 g dietary fiber per two scoops.

  • Pure Cinnamon: + cinnamon bark powder, sunflower lecithin, Reb M
  • Unflavored: + sunflower lecithin
  • Orange: + natural orange flavors, citric acid, sunflower lecithin, Reb M
  • 12–48 hours: Easier, more regular stools.
  • Weeks 1–4: Fuller microbiome and metabolic benefits build with steady use.
  • Ongoing: Improved bowel comfort, better stool quality, reduced bloating, added satiety and steadier blood sugar when intake is consistent.

Take at whichever time of day is easiest to stay consistent — morning hydration, first meal, protein shake or evening.

Tested by Light Labs, January 2026 — 13 substances screened. NSF Certified for Sport® per batch. Eight studies cited:

  1. Consumption of Solnul™ resistant potato starch produces a prebiotic effect in a randomized, placebo-controlled clinical trial
  2. The impact of diet and lifestyle on gut microbiota and human health
  3. The Health Benefits of Dietary Fibre
  4. The Importance of Dietary Fiber for Metabolic Health
  5. Association of dietary fiber intake with all-cause and cardiovascular mortality in U.S. adults with metabolic syndrome
  6. Beyond the gut: decoding the gut–immune–brain axis in health and disease
  7. Role of brain-gut-muscle axis in human health and energy homeostasis
  8. The gut-brain axis: interactions between enteric microbiota, central and enteric nervous systems

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