My first potentially offending food is wheat (and gluten). I am eliminating it for a few weeks to see if I notice "any results." Since the goal is to eliminate foods that trigger symptoms, the numbness and tingling in my hands should be one indicator.
The book maintains that "over time it becomes easier to identify the offending foods." For example, "[if] after a meal you experience a reaction such as numb tingling, a fleeting spasm, or some other telltale sign" you make note of the food and then eat it again later with known safe foods. It's only been a few days, but I haven't noticed much yet.
As a sidebar, I just have to say, it was imposssible to avoid processed sugar last night: it was Halloween! I had a few snack-size chocolate bars and some Tootsie Rolls. All in all, I did admirably well restraining myself from gobbling through the entire bowl meant to give out to the kiddies.
But I did have trouble falling asleep last night (is there caffeine in chocolate?) and this morning I felt clumsier and had more shaky vision than usual. I'm going to say that was the sugar, and drink lots of extra water today to try to flush it out of my body.