Could you give me some advice about how you keep products cold or frozen (dry ice?) when traveling, and where to find foods in health foods stores in Europe? In Europe, there are lots of natural foods stores, but they carry GF products with corn, which is not ok for some kids, and their "GF" foods may contain wheat starch. Bring enough GF bread for the first few days (keep in the little tiny fridge/wet bar in the hotel room) and then make due with microwaved baked potatoes, rice from a Chinese restaurant, and lots of snacks like Poprice, cashew nuts, and potato chips. One family brought Louis Rich turkey salami to Switzerland, which is so full of nitrites it didn't go bad. It's not the diet we'd choose for them normally, but for a week or so it is no big deal!