One other thought. If you don't have hyperthyroidism or Hashimoto's Disease, you might think about taking a high quality nascent [ionic] iodine to help stimulate your thyroid. Depression is also a symptom of low thyroid function, and most people are severely deficient in iodine.

I switched to nascent iodine earlier this year, and my hair that was almost completely white in the front [I started going gray when I was 21] is now turning a storm cloud gray! I know most people wouldn't want gray hair, but I'm thrilled that my hair has more color, and it's gone from being very straw like to much softer like when I was younger.

Here's a good video on the importance of iodine. I use Dr. Group's private label iodine called Survival Shield X2 Nascent Iodine.