Clinical Research Directory

Inclusion Criteria: * BMI \>= 25 kg/m2 * Documented diagnosis of MGUS or Smoldering MM(SMM) or Smoldering Waldenstrom Macroglobulinemia(WM) via EMR review. \*note: please review case with PI or treating MD if diagnosis is uncertain. * At least 18 years of age * Currently fasting for \<14 hours per night, as assessed using 24-hour food recalls * Owns a cell phone and is comfortable sending and receiving text messages * Ability to understand and the willingness to sign a written informed consent document Exclusion Criteria: * Diagnosis of overt MM or WM * Patients diagnosed with another malignancy requiring active therapy * Clinical diagnosis of diabetes, which may increase the risk of hypoglycemia with a prolonged fast. Note: patients with diabetes may enroll with consent from MD that manages their clinical care. * Any other condition that, in the investigator's judgment, would contraindicate prolonged nightly fasting or otherwise interfere with participation in the trial, including night shift work, night eating syndrome, taking weight loss medication, or participation in another weight loss program