Vitamin D supplementation effectively improves depressive symptoms in women with type 2 diabetes and low vitamin D levels, regardless of the dose administered.
In the study, a double-blind randomized active comparator-controlled trial was performed. Female participants with significant depressive symptoms, as indicated by the Center for Epidemiologic Studies Depression scale, received weekly oral vitamin D supplements: a group received a higher dose (50,000 IU), while the control group received a lower dose (5,000 IU). These doses were taken over the course of 6 months, and participants' vitamin D and depression levels were evaluated at baseline, at the 3-month point, and at the end of the study.
The improvement in depressive symptoms over the course of the study was significant, irrespective of the supplement dose given. There was no discernible difference between the depression scores of those who received the higher dose compared to those who received the lower dose. This remained true when considering women with moderate baseline depressive symptoms. However, among women with severe depressive symptoms at the outset, both groups showed similar improvements in their follow-up depression scores. The dose administered did not affect the significant time-related decrease in depressive symptoms.
