Vitamin D, a pre-hormone, regulates and/or affects multiple functions such as immune-, coagulation-, cardiovascular-, central nervous system, inflammation, cancer rates, deep-vein-thrombosis, sleep-apnea, and respiratory tract infections (RTIs). 1-8 The role of vitamin D in reducing RTI is outstanding as reported by a meta-analysis. 2 Our first reference is a must read document with “over 150 [...]
