SORA Laboratories Analysis Exposes Widespread Under-Dosing in $50 Million Cardiovascular Supplement Market

WILMINGTON, DE / ACCESS Newswire / September 26, 2025 / A comprehensive independent laboratory analysis conducted by SORA Laboratories has revealed that 4 out of 5 nattokinase supplements fail to deliver their claimed potency levels, raising serious questions about quality control and consumer value in the rapidly growing cardiovascular supplement market.

The testing, which analyzed leading nattokinase products using standardized fibrinolytic unit (FU) measurements, found that major brands consistently under-delivered on their label claims by 7% to 33%, potentially leaving consumers paying premium prices for significantly less active enzyme than advertised.

Key findings from the SORA Labs analysis include:

• 80% of tested products failed to meet their stated potency claims

• Under-dosing ranged from 7% to 33% below advertised levels

• Products claiming 4,000 FU delivered as little as 2,660 FU in actual testing

• Only 20% of products met or exceeded their label claims

• Average potency shortfall across failing products was 25%

The testing analyzed popular nattokinase supplements available through major retail channels, with all products purchased directly from consumer markets to ensure authentic representation of what consumers actually receive.

Consumer Impact Reaches Beyond Price

The discrepancies have implications beyond consumer spending. Clinical research on nattokinase's cardiovascular benefits typically uses doses of 2,000-4,000 FU daily. Products that significantly under-deliver may not provide the researched health benefits consumers expect.

The testing was conducted by SORA Laboratories using standardized analytical methods, with results certified by Rebecca Story, Director of Quality, whose signature appears on the official testing certificates. The laboratory analysis reveals significant discrepancies between advertised potency levels and actual enzyme activity measured in consumer products.

Industry-Wide Quality Control Challenges

The enzyme supplement sector faces unique manufacturing challenges that may contribute to potency variations. Nattokinase's activity can be sensitive to processing methods, storage conditions, and manufacturing quality - factors that require specialized handling throughout the supply chain.

Unlike synthetic compounds, enzyme activity can degrade during manufacturing and storage, making consistent potency more difficult to maintain without proper quality systems.

Industry Transparency Movement Gains Momentum

The testing results come as consumer advocacy groups increasingly call for mandatory third-party verification in the supplement industry. Unlike pharmaceuticals, dietary supplements are not required to prove potency before reaching market shelves.

Independent review platforms have begun conducting their own testing to help consumers identify quality-verified products. Comprehensive testing methodologies and results are now being published at specialized review sites like nattokinasereviews.com, which focuses specifically on enzyme supplement verification.

Growing Market Demands Better Standards

The nattokinase supplement market has experienced significant growth, driven by research into the enzyme's potential cardiovascular benefits. Nattokinase, derived from the traditional Japanese food natto, has been studied for its effects on blood circulation and cardiovascular function.

However, the market's rapid expansion has occurred without corresponding improvements in quality assurance standards, leading to the potency inconsistencies revealed in testing.

Consumer Education Recommendations

Industry experts recommend that consumers look for supplements that provide:

• Third-party laboratory verification certificates

• GMP (Good Manufacturing Practice) certification

• Clear potency measurements in standardized FU units

• Transparent testing documentation

• Certificates from accredited laboratories like SORA Labs

Quality-verified nattokinase supplements that have undergone independent testing are becoming available through specialized retailers that provide lab certificates with their products.

Call for Industry Reform

Consumer protection advocates are using these results to support calls for mandatory third-party testing requirements for all supplement categories, not just nattokinase products.

"This testing demonstrates why voluntary compliance isn't sufficient," noted industry analysts. "Consumers deserve accurate labeling backed by verified testing, not marketing claims without scientific validation."

About the Testing

The SORA Laboratories analysis used method GM0068 for nattokinase unit measurement and GM0009 for serving size verification. All testing was conducted under controlled conditions with samples stored at ambient temperature. Testing certificates reference numbers include 35170642, 35170626, 35170661, 35170634, and 35260854.

Market Response Expected

While individual manufacturers have not yet responded to these findings, industry associations are expected to address quality control standards following the release of this independent testing data.

Previous testing discrepancies in other supplement categories have led to improved quality control measures by some manufacturers, suggesting potential industry-wide improvements may follow.

Disclaimer: These statements have not been evaluated by the Food and Drug Administration. Nattokinase supplements are not intended to diagnose, treat, cure, or prevent any disease. Consumers should consult with healthcare providers before starting any supplement regimen, especially if taking blood-thinning medications.

Media Contact: For testing methodology details and additional information about supplement quality verification, visit nattokinasereviews.com

Note to editors: High-resolution laboratory certificates and additional testing data are available upon request for verification purposes.

contact: info@nfsupplements.co.uk

SOURCE: Natural Foundation Supplements