BioStacks
Swanson

Probiotic + Prebiotic Fiber

2 Capsules · 30 servings · $0.54/serving

iHerbAmazon

Best for

Digestion

Ingredients (2)

Bifidobacterium lactis

90%

Dose

2 B CFU

Target

1–100 B CFU

Form

Standard

NutraFlora® SCFOS

20%

Dose

1000 mg

Target

5000–10000 mg

Form

—

Other Ingredients (4)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

How to Take It

Best taken in the morning

Live strains survive stomach acid best taken with or just before a meal — after a meal is the worst option. Consistency matters more than the clock.

With food
Keep it away from hot food or drink

On the label

As a dietary supplement, take two vegan capsules per day with water.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$16.09

$10$20

Cheaper than 70% of 28 prebiotic fiber supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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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