Yeah, it's really hard. A food journal is a great idea. The corn allergy sites are still full of information on where to find hidden corn and there are quite a few people on them who have intolerances instead of allergies. For me, the protein is the problem. That's why corn starch is OK. But those clear plastic bottles you get individual servings of water in make me sick because they are made with corn protein! And I know ascorbic acid does me in because the last corn exposure I had was to a vitamin C capsule and I truly thought I was going to die.
If there is a Shopko near you you can get vitamins though. They have a line called "Shopko Naturals" that contain no gluten, corn, soy, yeast, sugar, dairy, sugar, salt, artificial flavorings or colorings. Maybe you could even order tham from their website. I stock up when they have buy one get one free sales (which they do fairly frequently), and wind up paying about $3.50 for a bottle of 60. Vitamins are really important for folks like us who are on such limited diets.
Bartfull the main question I have I think is what is really the difference between corn syrup and high fructose corn syrup? I have googled it but don't really understand the answers. I KNOW that I cannot have corn syrup. But I still drink sodas and I don't know if the HFCS has more or less corn derivitive than regular corn syrup? I know the caramel color is bad too but I'm seriously addicted to caffeine and until I work it out I am curious how much the HFCS is affecting me.