Medical disclaimer: GutVerdict summarizes what people say about supplements on Reddit. It is not medical advice, and nothing here is meant to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration. Talk to your doctor or pharmacist before starting a supplement, especially if you are pregnant, take medicines, or have a medical condition. New, severe or worsening symptoms (such as blood in the stool, weight loss, fever, or night-time symptoms) need a doctor, not a supplement. Full disclaimer.

Sunfiber vs Benefiber

On Reddit, owners rate Sunfiber higher overall (4.0 vs 3.7). Scores summarize self-reported experiences and are not evidence that either will work for you.

SunfiberBenefiber
TypePHGG (Sunfiber)Wheat dextrin (Benefiber)
GutVerdict score4.03.7
Owner sentiment3.93.7
Recommendations2.71.9
Tolerability4.84.8
Owner comments14792
Rated comments6445
Unwanted effects reported5%9%
Top praiseRegularity, Dose & timingDose & timing, Bloating & gas
Top complaintsDose & timing, Side effectsSide effects

What owners say about Sunfiber

4/5

“I Figured out the motility issues 2 years ago and what helped me is phgg sunfiber before lunch, a cup of stash ginger tea for lunch and dinner.”

owner comment via r/SIBO · 2026-05-26 · 10 upvotes
4/5 Urgency & loose stools

“Been dealing with chronic diarrhea for months and my naturopath just recommended Tomorrow’s Nutrition brand SunFiber.”

owner comment via r/SIBO · 2025-11-13 · 5 upvotes
4/5 Regularity

“My naturopath who specializes in sibot, Mcas and others recommended I take sunfiber pro.”

owner comment via r/SIBO · 2026-05-21 · 5 upvotes

Full Sunfiber page →

What owners say about Benefiber

4/5

“Switching to 2 teaspoons of Benefiber twice a day has helped me a bit with this.”

owner comment via r/IBS · 2026-03-27 · 10 upvotes
4/5

“I have also had great success the last few years taking Benefiber daily in my coffee each morning and now my issues went from 10 to 4 very manageable .”

owner comment via r/IBS · 2026-05-01 · 5 upvotes
3/5 Pain & crampingUrgency & loose stools

“Try benefiber. It will help with both constipation and diarrhea. Its literally been the most helpful thing for me during all of this along with fasting (I do it intuitively, only one or 2 meals a day depending on how I feel, eaten veeery…”

owner comment via r/IBS · 2026-05-04 · 4 upvotes

Full Benefiber page →

Talk to a doctor or pharmacist before switching or combining supplements, particularly if you take other medicines.