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Creatinine tests can mislead athletes, bodybuilders, and anyone with high muscle mass. The Cystatin C blood test is a more accurate way to assess kidney health for people using creatine, supplements, or performance enhancers. Learn why this biomarker matters and how to access testing in New Zealand through Strom Sports.

Astragalus is a traditional herb with modern research showing potential kidney-protective benefits, but only if it contains enough astragaloside IV. Learn how it works, who may benefit, and why proper testing and product choice matter for real results.