Cystatin C–based eGFR
Advanced wellnessalso egfrcys
What it isA calculated filtration rate derived from cystatin C rather than creatinine, providing a muscle-independent estimate.
DoesCross-checks creatinine-based eGFR, which can mislead at extremes of muscle mass.
GoodA high value confirms strong filtration capacity.
BadWhen creatinine-based eGFR looks fine but cystatin C–based eGFR is low, kidney may be worse than it appears.
How to optimize
- Lifestyle
- Same as eGFR — blood pressure, glucose, hydration, weight.
- Diet
- Moderate protein; Mediterranean pattern.
- Supplements
- Omega-3 EPA+DHA (2–4g/day).
- Peptides
- —
- Drugs
- ACE inhibitors, ARBs, SGLT2 inhibitors.
within Kidney