I did a research paper in high school on Functional Hypoglycemia. Chronic low blood sugar is known to promote anxiety and paranoia. I've blogged about managing various somatopsychic side effects with diet, such as eating oranges for the vitamin c while enduring random fits of rage to get that under control and eating beef with potatoes to mediate the salt lithium connection and calm bipolar-like mood swings.
But I am not interested in fighting some uphill battle to convince a skeptic who is just pissing all over me with every reply. So I had no reason to stick my neck out and share any of that. I get enough flak from the world for managing my medical condition with diet and lifestyle.
Edit: There's also lots of interesting stuff about nutrition and state of mind in this discussion about nutrition and the prison population: https://news.ycombinator.com/item?id=16140867#16141719