Oat or Bran Cereal
Both are super high in dietary fiber, and fiber helps move food through your digestive tract, says Jennifer Fitzgibbon, R.D., an oncology dietician at Stony Brook University Cancer Center in New York. Why’s that important? The longer some of the toxins you might ingest along with your food hang around your GI system, the higher the likelihood that they cause DNA damage, possibly resulting in cancer, says Gaynor.