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 ...

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 ...

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 ...