I read many books in my leisure as well as surfing the internet for different health relayed blogs. I found something interesting on the Brain Food Blog. There was a study involving 1100 patients admitted to the Sheppard Pratt Institute.
Those patients consuming meat sticks were found to five times more likely to have mania . Those patients that consume nitrated or cured meat such as bacon and salami have 3.5 to 5 times the risk of having mania.
Nitrates were found to change physiology and behavior in a way that mimics the underlying mechanisms of mania and bipolar study.