A new study has suggested that eating oatmeal and other whole-grain oat cereal can help control blood pressure levels meaningfully, and potentially lower drug-prescription expenses by millions of dollars annually. In one of the first studies to quantify the cost savings of prescription drugs when using a dietary approach to help combat high blood pressure, the study indicates that 73% of participants who ate oat cereal daily for 12 weeks were able to reduce or eliminate their need for blood-pressure medication at an average annual cost of savings of US$197.63 per patient.