fibroblast growth factor 23 (FGF23)

Fibroblast Growth Factor 23 (FGF23) is a hormone produced mainly by bones that helps regulate the body's balance of phosphate, a mineral important for bones and energy. FGF23 lowers phosphate levels in the blood by helping the kidneys remove excess phosphate and by reducing vitamin D activation, which affects calcium and phosphate absorption from food. Proper FGF23 function is vital for maintaining healthy bones and mineral balance. Abnormal levels can contribute to bone diseases and conditions related to mineral imbalance, highlighting its key role in skeletal health and mineral metabolism.