This powdered fiber blend delivers 7g of soluble fiber per scoop for digestive regularity and gut health, drawn mostly from **partially hydrolyzed guar gum** (Sunfiber). That's a real, gentle top-up: soluble fiber supports regular bowel movements, feeds beneficial gut bacteria as a prebiotic, and has modest effects on cholesterol and blood sugar.

The catch is the amount. The daily fiber target is 25–38g and most people fall well short, but most supplemental-fiber trials use 10–15g/day, so one scoop covers only part of that gap. The supporting apple pectin (150mg) and arabinogalactan (300mg) sit far below the multi-gram doses used in cholesterol research, so they add little beyond the guar gum.

Treat this as one piece of your daily fiber, not a replacement for food. Start with half a scoop to let your gut adjust and avoid gas or bloating.

BioStacks
Thorne

FiberMend

Powder · 11 Gram · 30 servings

iHerbAmazon

Ingredients (6)

Sunfiber AG

100%

Dose

8 Gram(s)

Target

5–10 g

Form

—

Rice Bran

100%

Dose

2.5 Gram(s)

Target

1–20 g

Form

—

Dietary Fiber

70%

Dose

7 Gram(s)

Target

10–30 g

Form

—

ResistAid

20%

Dose

300 mg

Target

1500–4500 mg

Form

—

Pectin

3%

Dose

150 mg

Target

6000–15000 mg

Form

—

Nutrition

Calories, macros & sodium.

  • Calories45 Calorie(s)
  • Total Fat1 Gram(s)
  • Total Carbohydrates9 Gram(s)
    • Dietary Fiber7 Gram(s)

Other Ingredients

No other ingredients listed

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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