EVIDENCE-BASED SUPPLEMENT SCORING
5.9/10
AVERAGE

Confidence: 80%

Swanson Saccharomyces Boulardii 5 Billion Cfu 30 Veg Capsules

Swanson Saccharomyces Boulardii 5 Billion Cfu 30 Veg Capsules

B0035JZER2

View on Amazon →

SuppScoreLab compares supplement products for informational purposes. We do not sell products directly, and some links may take you to third-party retailers.

Decision summary

CONSIDERAVERAGE

Not a strong option overall. The product is materially held back by weaker ingredient form quality.

Best for

Buyers comparing price and availability and okay with a middle-of-the-pack option.

Consider another option if

You care a lot about label clarity and want fewer unknowns.

Score breakdown

Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.

Dosage quality

4.0/10

Dosing looks weaker than ideal

Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).

Score summary

The supporting evidence profile is relatively strong. The main limitation is that saccharomyces-boulardii: no form data available — bio score = 0.

Strengths

The supporting evidence profile is relatively strong
The formula stays relatively clean on excipients
The formulation has a clearer overall purpose

Weaknesses

Saccharomyces-boulardii: no form data available — bio score = 0
Mannan-oligosaccharides: no form data available — bio score = 0
Serving size or servings_per_container missing (-2)

Final verdict

Not a strong option overall. The product is materially held back by weaker ingredient form quality.

Ingredient Analysis & Evidence

A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.

ℹ At the minimum effective range, but below the optimal dose; evidence is strong

Dose meets the minimum effective range, but is below the optimal dose used for stronger effects. A clear drag on the formula: Dose is below the ranges usually used for stronger effects.

Scientific evidence

Meta-analysis

McFarland meta-analysis Saccharomyces boulardii and diarrhea prevention

World Journal of Gastroenterology • 2010

PMID: 20152783.0

Evidence inferred from established knowledge, not directly linked studies

Adequate, but not a key strength: Clinical dosing guidance is limited for this ingredient.

No supporting studies or dosing references are currently available for this ingredient.

Swanson Saccharomyces Boulardii 5 Billion Cfu 30 Veg Capsules

Swanson Saccharomyces Boulardii 5 Billion Cfu 30 Veg Capsules

Warnings & notes

Important label or formulation details that may affect how this product should be interpreted.

There is a formulation caveat worth noting

Saccharomyces-boulardii: no form data available — bio score = 0

Note
i

Some label details are missing or unclear

Incomplete disclosure makes the product harder to evaluate confidently.

Info

Methodology

Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.

View methodology →

This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.

Still comparing options?

See the best Probiotics supplements ranked with the same methodology, or keep exploring the database.

As an Amazon Associate I earn from qualifying purchases.