Veterans and Vitamin D - many studies On this page See also VitaminDWiki: Military and Vitamin D - many studies 24+ Vitamin D to veterans likely to suicide, 45% decrease in suicide attempts - Feb 2023 Overview Seniors and Vitamin D 40 percent less likely to die if vitamin D was prescribed (10,000 VA patients, no surprise) – Oct 2021 Dementia risk increased 2.4 X following TBI, even if had not lost consciousness – May 2018 VA showed increased vitamin D associated with lower health costs - Lancet May 2012