The increase in depression is most correlated with the increase in inflammatory autoimmune diseases and with significant changes in the western diet.
![](https://thinkbynumbers.org/wp-content/uploads/2019/10/Tryptophan-Steal-Chart1-1024x791-672x519.jpg)
The increase in depression is most correlated with the increase in inflammatory autoimmune diseases and with significant changes in the western diet.