Introduction Calcidiol, also known as 25-hydroxyvitamin D, is an essential precursor in the metabolic pathway of vitamin D and plays a pivotal role in calcium homeostasis and bone metabolism. Its relationship with parathyroid hormone (PTH) is particularly critical, especially in the context of hyperparathyroidism. This article explores the complex interplay between calcidiol levels and … Continue reading Calcidiol Levels and Their Impact on Parathyroid Hormone Regulation: Exploring Hyperparathyroidism