
This article by Dr Kelly Brogan explores the idea that depression and associated mental health issues isn't so much to do with a chemical imbalance in the brain, but linked to specific nutrient deficiencies / poor diet choices, digestive dysfunction, blood sugar imbalance and chronic inflammation.
This is something that I wholeheartedly agree with, having seen first-hand how simple dietary changes to address nutrient deficiencies and support blood sugar balance and digestive health can make a huge difference to my clients health and wellbeing - both physical and mentally.
http://m.greenmedinfo.com/blog/depression-it-s-not-all-your-head