By Stephen W. Parcell, ND
According to a recent study on Japanese individuals lower serum 1,25(OH)2D levels are a potential risk factor for all-cause death, especially cardiovascular and respiratory infection death, in the general Japanese population, and that lower serum 1,25(OH)2D levels greatly increase the risk of respiratory infection death in subjects with kidney dysfunction. Other studies on different population all indicate the same thing.
Umehara K, Mukai N, Hata J, Hirakawa Y, Ohara T, Yoshida D, Kishimoto H, Kitazono T, Hoka S, Kiyohara Y, Ninomiya T. Association Between Serum Vitamin D and All-Cause and Cause-Specific Death in a General Japanese Population - The Hisayama Study. Circ J. 2017 Apr 20. doi: 10.1253/circj.CJ-16-0954. [Epub ahead of print] PubMed PMID: 28428487.