Brief Research ReportPublished 4 February 2026Low calcium intake from diet and supplements in a group of Polish patients with SLE – an additional risk for osteoporotic fractures?Jolanta Anna Dardzińska · Natalia Matysiak · Karolina Kułakowska · Marta Jaskólska · Sylwia Małgorzewicz · Alessio MolfinoActa Biochimica Polonicadoi 10.3389/abp.2026.15808