Advanced Kidney Function Test
Stack this specialty add-on test on top of your baseline blood panel to get a truer read of how well your kidneys are really filtering. This test measures Cystatin C, a kidney function marker that isn’t thrown off by muscle size, heavy workouts, or creatine supplements. It’s especially helpful if you take pre-workout or creatine, have very high or very low muscle mass, or your routine eGFR results came back “borderline.” Combined with your baseline biomarkers, your clinician can see through the noise and give you clear, accurate insights about your kidney health—and how to protect it long-term.
- Measurement of Cystatin C, a precise kidney-function marker that isn't affected by muscle size, workouts, or creatine supplements
- Clinician-reviewed insights tied to your existing blood biomarker profile, giving you a complete, integrated picture of your kidney health
- Clarity when routine eGFR results look "borderline"—separating muscle or supplement effects from real kidney concerns
- Personalized recommendations to protect kidney performance, hydration, and recovery habits
- Year-over-year tracking to spot subtle changes early and stay confidently in the clear
Cystatin C
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Better together
We don't believe in single tests in isolation, nor DIY guesswork. That's why your NiaHealth clinician is here to help you identify patterns, personalize action plans, and help you feel better now while lowering risk for tomorrow.
Why it matters
The biomarker creatinine can be skewed by muscle mass and supplements, making kidneys look worse—or better—than they are. Cystatin C is less affected by muscle, age, or sex and often tracks true filtration more closely; major guidelines recommend combining it with creatinine for better accuracy.
For those currently taking creatine supplements, it can raise serum creatinine without harming GFR, so Cystatin C helps separate supplement effects from real kidney issues.
Consider if you...
Track compounding progress
Every specialty add-on test includes a human clinician who reviews your data and writes a hyper-personalized report.
The best part? All your data is in one place on your secure dashboard: your blood biomarker results, integrated wearable & health app data, and specialty test scores, together for compound effect, and guided by human clinician-written insights.
Your creatinine looked borderline this year, but cystatin C is normal—common in lifters and creatine users. Keep hydrated, stay on your current training plan, and we’ll re-check in 6 months to confirm the trend.
Elizabeth, NP
What to expect
This test is added to your baseline blood draw—completed either in-clinic or during your at-home visit with a licensed phlebotomist.
Your NiaHealth clinician reviews your health goals, family history, baseline biomarkers, and specialty add-on results to create a hyper-personalized report with tailored lifestyle recommendations
Your add-on test results will appear in your NiaHealth dashboard once ready, alongside your complete biomarker profile
Book your 1:1 Signature Virtual Clinician Consult to review your results and co-create your personalized action plan. Included for Core and Ultra members.
Health isn’t a sprint. It’s a strategy.
Every test builds on the last. With your clinician by your side and your data tracked year over year, you build habits that last—and a body that keeps up.
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Advanced Kidney Function Test
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FAQ
Still have questions?
NiaHealth currently operates in Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, and Saskatchewan.
No - we do not prescribe medication. However, we do provide, where applicable, suggestions. For interventions (including medications and supplements), we include a note of suggestions that you can discuss with your current medical team. Prescriptions are left to their discretion.
We offer advice to enhance your current health state, emphasizing prevention through exercise, nutrition, sleep, and emotional well-being but not medical management of existing illness. If we discover any incidental health issues, we provide suggestions for discussion with your primary care provider. While our suggestions impact overall health and various chronic conditions, comprehensive medical management of existing illnesses remains the responsibility of your current medical team.
No. NiaHealth does not sell your personal health information to third parties. NiaHealth has not and will not engage in the sale of personal health information for monetization purposes. If you have any questions, please review our Privacy Policy or reach out to our Chief Privacy Officer at privacy@niahealth.co.
Yes. Our service is HSA-eligible and CRA-eligible medical expenses, but it is recommended that you check with your individual insurer if our services can be covered under any of your other supplemental benefits. If you require a quote for your HSA, use our free quoting tool to generate a personalized membership quote with the details your provider may need. Note: each HSA may require different information for eligibility.
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