A 2020 study published in The Journal of Bone and Mineral Research found that women with vitamin D levels below 20 ng/mL had a significantly higher risk of fractures compared to those with ...

Over the past few decades, the "normal" blood level of vitamin D (25-OH vitamin D) was based on the amount needed to keep PTH from becoming abnormally high. Again, PTH at high levels can cause ...

This can push calcium levels in the blood to dangerous levels, triggering health complications. Vitamin D toxicity presents with a spectrum of manifestations that are primarily caused by ...