Association of dietary phosphate and serum phosphorus concentration by levels of kidney function.

Background: The health implications of dietary phosphorus intake and the role of kidney function in managing serum phosphorus homeostasis are well studied. However, examining the source of dietary phosphorus intake and its impact on serum phosphorus has not been characterized in population studies.

Objective: This study aimed to distinguish the association of food sources of organic phosphorus and inorganic phosphate additives with serum phosphorus concentration.