Biochemical markers of CKD‐MBD (calcium, phosphorus, 25(OH)D, PTH, and FGF‐23), bone formation (BSAP, OCN, P1NP) and resorption (C‐telopeptide, TRAP5B) markers, and SOST did not differ between low and non‐low turnover. This evidence concerns the gene FGF23 and Marchiafava-Bignami disease.