Understanding Stage 3 Chronic Kidney Disease

No, kidney damage at Stage 3 is usually permanent — but progression to Stage 4 or 5 can often be slowed for years with tight BP and blood sugar control, an ACE inhibitor or ARB, and a lower-protein diet. Many patients stay at Stage 3 for a decade or longer.

Stage 3a is GFR 45–59; Stage 3b is 30–44. Below 30 is Stage 4. Your nephrologist will track the GFR trend more than any single reading — a stable GFR over 12 months is a good sign, even at 40.

Not immediately. Current guidelines allow metformin at GFR 30–60 with reduced dose (usually halved) and regular monitoring. Stop only below GFR 30 or if lactic acidosis symptoms appear. Discuss dose adjustment with your doctor — don't stop on your own.

Damaged kidneys make less erythropoietin — the hormone that tells your bone marrow to produce red blood cells. Anemia usually appears around Stage 3b and is treated with iron supplements, sometimes an ESA injection, and vitamin B12 if deficient.

Lower protein (0.8 g per kg body weight daily), low sodium (under 2 g/day), and controlled potassium and phosphorus — which usually means limiting bananas, coconut water, dal, and dairy. An Indian renal dietitian can build a rice/roti-based plan that fits your regional cuisine.