Horizontal bars indicate the number of individuals making an erorr related to an ingredient. Dark grey shading indicates the ingredient was in a gluten-containing food contained gluten and light grey shading indicates ingredient was in a gluten-free food. Only the eight items with the highest number of errors are shown. Numbers overlying horizontal bars indicate the number of individuals who made the corresponding error. * Soy products include: soy, soy lecithin, soybean, soybean oil, hydrolyzed soy protein, and hydrogenated soybean oil.