jay22deb replied to MitziG's topic in Gluten-Free Foods, Products, Shopping & MedicationsMy wife, with Celiacs, just had a similar experience. Last night she became ill, and we narrowed down the possible causes to peanut butter M&Ms or salad dressing. Tonight she is again sick, and the only outlier she ate were peanut butter M&Ms. (She has never had problems with regular M&Ms.) She has no history of reacting to peanut butter and related products before. Could Mars be experience a cross-contamination problem??