ALB and inflammatory bowel disease: IBD patients with below-average albumin-adjusted serum free thiols had significantly higher WBC (median (IQR) 8.7 (6.5–12.5) vs. 6.5 (5.3–9.2) × 109/L, P < 0.01), platelets (339 (283–402) vs. 290 (236–331) × 109/L, P < 0.05) and fecal calprotectin levels (1465 (929–2420) vs. 600 (255–1220) μg/g, P < 0.01), whereas disease duration was shorter (6.0 (2.0–11.0) vs. 9.0 (3.8–13.0) years, P < 0.05) and eGFR was significantly lower (mean ± SD 95.8 ± 22.9 vs. 109.0 ± 28.4 mL/min/1.73 m2, P < 0.05).