FGF23

FGF23 is a hormone that your body produces to help regulate phosphate and vitamin D levels in your blood, keeping them in a healthy balance. Think of it as a messenger that tells your kidneys how much phosphate to filter out and how much vitamin D to activate, acting like a natural thermostat for these critical minerals. When FGF23 levels go wrong, it can lead to bone diseases and other health problems, which is why scientists study it to develop better treatments.