Effects of zinc, vitamin D, and their co-supplementation on mood, serum cortisol, and brain-derived neurotrophic factor in patients with obesity and mild to moderate depressive symptoms: A phase II, 12-wk, 2 × 2 factorial design, double-blind, randomized, placebo-controlled trial

•Significant decreases were seen in the Beck Depression Inventory score among those who received zinc, vitamin D, or a combination of zinc and vitamin D supplements.•Zinc had a more significant effect than vitamin D on the depression score.•Supplementation with zinc, vitamin D, and a combination of...

Ausführliche Beschreibung