I have a long history of psychiatric troubles such as C-PTSD, anxiety, etc. I have steadfastly resisted medication for it, but when I did accept medication I was afflicted with brain fog and other terrible side-effects. However, I recently committed to an organic diet of fresh fruits, vegetables and meals prepared from scratch. Contrast this with my previous diet of fast food, casual restaurants and plenty of delivery, and it was like night and day.
One of the chief benefits of switching to a healthy diet was the end of brain fog and an absolute renaissance of good sleep hygiene. I woke up with the dawn and I had plenty of energy throughout the day. I ate several small meals on a regular basis and I slept soundly and restfully. My blood pressure dropped to normal levels and I experienced much less stress, and I benefited from increased exercise through housework and meal prep.
As soon as I "fall off the wagon" and begin to eat restaurant food again, I return to horrible insomnia, brain fog, and reduced executive function. I have trouble working through the day.
So I can't blame the psychoparmaceuticals for this stuff anymore, it was 95% my diet. I'm super glad that I found a way out, and I'm grateful for the clarity and health promised by better lifestyle choices.