A child is 1-year-old. Ater the recent introduction of complementary feeding the child has presented with loss of appetite, diarrhea with large amounts of feces and occasional vomiting, body temperature is normal. Objectively: body weight is 7 kg, the child is very pale, there are edemata of both legs, abdomen is significantly enlarged. Coprogram shows many fatty acids and soaps. The child has been diagnosed with celiac disease and administered the gluten-free diet. What is to be excluded from the ration?