BioStacks
Kirkland Signature

Fiber Capsules

5 Capsules · 72 servings · $0.25/serving

11 / 100Very Poor

Score Breakdown

Formulation
19
Safety
59
Final score
11/100

Ingredients (4)

2 scored · 2 not scored

Dietary Fiber3 g

30% of effective dose

Soluble Fiber2 g

20% of effective dose

Psyllium Husk

Amount not found

Iron0.4 mg

Trace amount — not scored

Nutrition

Calories and macros.

  • Dietary Fiber3 g
  • Soluble Fiber2 g

Other Ingredients

Fillers, coatings, and additives

4Safe2Avoid

Caramel ColorColor

Avoid

Polysorbate 80Emulsifier

Avoid

Gum AcaciaBinder

Safe

IronMineral

Safe

GelatinCapsule

Safe

Psyllium (seed/husk)Fiber

Safe

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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.