Optimization of Adaptive Text Messages for Cancer Survivors (OATS II)

This clinical trial evaluates whether an adaptive text-message intervention is useful in helping survivors of colorectal cancers (CRC) eat more whole grain foods and less refined grain foods. Most CRC survivors don't achieve the recommended intakes of whole grains or fiber, even though there is strong evidence that a high-fiber diet rich in whole grains lowers the risk of death from CRC. Dietary interventions are a promising approach for reducing death from CRC, and text message interventions specifically are a promising tool for reaching diverse populations. This trial evaluates a text-message based dietary intervention that continuously adapts message content to be specifically tailored for the participant for increasing whole grain consumption.

Inclusion Criteria:Age > 18 years.Subject has provided informed consent.Diagnosis of colon or rectal adenocarcinoma.Not on active treatment at the time of screening and not expected to receive active anticancer therapy (e.g., surgery, radiation, chemotherapy) during the study period.At least 6 weeks since a major surgery and fully recovered.Owns a mobile phone able to receive and send text messages.Able to speak/read English or Spanish.Based on a screening survey, eat grains and <50% of total grains are whole grains.Exclusion Criteria:1. Does not meet any of the above inclusion criteria.