Gut & Hydration · Fiber Supplements
Tomorrow's Nutrition Sunfiber GI Prebiotic Fiber, 30-Day Supply
Partially hydrolyzed guar gum, the low-bulk option.
Tomorrow's Nutrition
4.6 (642 ratings) · LeanScore 82
$29.99
Price checked Aug 22, 2026What it costs to use
— This listing doesn't state servings per container or protein per serving, so we don't compute a per-serving figure for it.
Who should skip this
You want fiber alone — this one also carries a probiotic strain.
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Our verdict
Reviewed by the LeanFed team · Hilly Shore Labs · Updated Aug 22, 2026 · Price checked Aug 22, 2026
Synthesized from public specs and 206 buyer mentions. We research and compare — we don't test products.
Get it if
Sensitive guts: it is low-FODMAP certified and ferments slowly.
What owners praise
- Effectiveness
- Taste
- Fiber Content
- Solubility
What they flag
- Digestive Effects
- Value for money
Buyers praise effectiveness, taste, fiber content and solubility. Mixed feedback on digestive effects and value for money.
The LeanScore, unpacked
Our published method blends real owner satisfaction with in-category value. No hidden math.
Owner satisfaction82/100
Value80/100
Specifications
- Fiber type
- Partially hydrolysed guar gum (with probiotics)
- Fiber/serving
- 5 g
- Servings
- 30-day supply
- Form
- Powder
Specs from the manufacturer listing and public product data; confirm the current listing before buying.
Manufacturer's claims (from Tomorrow's Nutrition)ShowHide
- 2-in-1 Synbiotic Blend: Contains prebiotic fiber & probiotics to support healthy digestive balance, so you can feel your best from inside and out; Delivers 5g prebiotic fiber & 8 billion probiotics per serving
- Regulating Fiber: With 5 grams of soluble fiber per serving, Sunfiber helps alleviate occasional constipation & diarrhea by promoting regular, healthy bowel movements
- Probiotic Support: Active probiotics (bifidobacterium lactis) work in harmony with the prebiotic Sunfiber fiber to nourish beneficial gut bacteria, promoting a healthier digestive system and improved gut function
- Gentle On Your System: Sunfiber ferments slowly in the gut, promoting digestive health without excess gas or bloating; Our gentle, low FODMAP-certified formula is typically well-tolerated by individuals with sensitive stomachs
Marketing copy as listed by the manufacturer — not our assessment.