What is the opinion of Reddit about the
Source Naturals Vitamin D-3 Liquid Drops 2000 iu Supports Bone & Immune Health – 4 Fluid oz?

Also try vitamin D-3 supplements. My husband is susceptible to seasonal depression too and this has been a vast help. We take a few drops a night in a cup of liquid (tea, water, whatever).

http://www.amazon.com/Source-Naturals-Vitamin-Liquid-Fluid/dp/B002R3OBDU/ref=sr_1_5?ie=UTF8&qid=1423854434&sr=8-5&keywords=vitamin+d3+liquid