EVIDENCE-BASED SUPPLEMENT SCORING
6.8/10
AVERAGE

Confidence: 95%

Dr. Mercola Biothin Berberine with Chromium - Supports Healthy Metabolic Function - Enhanced Absorption - Non-GMO, Gluten-Free & Soy-Free - 30 Capsules (30 Servings)

Dr. Mercola Biothin Berberine with Chromium - Supports Healthy Metabolic Function - Enhanced Absorption - Non-GMO, Gluten-Free & Soy-Free - 30 Capsules (30 Servings)

B09WXR8KRJ

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Decision summary

CONSIDERAVERAGE

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

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

5.3/10

Acceptable dosing, but not standout

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 formula stays relatively clean on excipients. The main limitation is that proprietary blend prevents independent dose verification.

Strengths

The formula stays relatively clean on excipients
The supporting evidence profile is relatively strong
Label transparency is better than average

Weaknesses

Proprietary blend prevents independent dose verification
Berberine: below clinically studied range
Formula coherence is weak: diluted, decorative or overly complex

Final verdict

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

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.

✔ Clinically effective dose with moderate supporting evidence

A clear strength: Dose is strong and within effective ranges. The declared form supports strong absorption.

Scientific evidence

Meta-analysis

Balk et al. systematic review chromium picolinate and glycemic control

Diabetes Technology & Therapeutics • 2007

PMID: 17519436.0

⚠ Strong evidence exists, but dose is below effective threshold

One of the weaker points: Dose is likely below clinically useful levels.

Scientific evidence

Meta-analysis

Lan et al. meta-analysis berberine and lipid profile

Journal of Ethnopharmacology • 2015

PMID: 26448206.0

Meta-analysis

Dong et al. meta-analysis berberine and glycemic control in type 2 diabetes

Metabolism • 2012

PMID: 22162995.0

⚠ Dose is below commonly used clinical ranges

One of the weaker points: Dose is likely below clinically useful levels. The declared form is acceptable, but not among the best-absorbed options.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 15 mgOptimal: 500 mgUpper: 3000 mgGrade: A
Dr. Mercola Biothin Berberine with Chromium - Supports Healthy Metabolic Function - Enhanced Absorption - Non-GMO, Gluten-Free & Soy-Free - 30 Capsules (30 Servings)

Dr. Mercola Biothin Berberine with Chromium - Supports Healthy Metabolic Function - Enhanced Absorption - Non-GMO, Gluten-Free & Soy-Free - 30 Capsules (30 Servings)

Warnings & notes

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

i

Proprietary blend limits dose transparency

Exact ingredient amounts cannot be verified clearly.

Info
!

Berberine dose looks below clinically effective levels

Declared amount falls below ranges used in human trials.

Warning

Formula design looks less coherent than stronger alternatives

The formulation appears less focused than better-built options.

Note

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.

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