HI JT,
The foggy headedness is from ammonia - a toxin that is released when the bacteria die. Here is a good article written b a well respected LLMD explaining this:
findarticles.com/p/articles/mi_m0ISW/is_285/ai_n19170382/?tag=content;col1 Detoxing regularly is key in reducing the amount of ammonia in your brain. A good diet will, of course, help reduce the amount of toxin load, so a good food plan will be helpful. I just stick to eating healthy. Others have an actual diet or food plan that they choose to follow. One thing most agree on is reduce or eliminate the wheat in your diet, and possibly dairy as well - as reducing these are supposed to help to reduce the amount of inflammation in your body. Restricting the amount of processed foods that you consume will go a long way in reducing your toxin load as well.
I hope that this is helpful!!!