| Effect | Decrease |
| Values | Serum insulin levels: (-3.6 μIU/ml for Vitamin D, compared to + 2.9 μIU/ml for placebo, P = 0.06) |
| Trial Design | Randomized trial |
| Trial Length | 1-6 months |
| Number of Subjects | 40 |
| Sex | Both Genders |
| Age Range | 18-29, 30-44, 45-64, 65+ |
| Body Types | Untrained, Average |
In a randomized, double-blinded and placebo-controlled clinical trial high-dose vitamin D supplementation was shown to reduce depressive symptoms and improver markers for glucose homeostasis in individuals with major depressive disorder (MDD).
