Time Restricted Eating on Cancer Risk

Inclusion Criteria: * Age ≥ 40 and ≤ 67; * Postmenopausal women (no menstrual periods in the preceding 12 or more months) with pre-diabetes (A1C 5.7-6.4% and/or fasting glucose 100-125 mg/dL). A1c lab and/or fasting glucose criteria will need to be met within 12 months of signing consent form, can be obtained from prior lab result or study prescreening testing; * Own a smart phone with internet connection and capable of receiving and sending text messages and taking photographs; Exclusion Criteria: * Tobacco use (current or within last 2 years); * Active malignancy or history of cancer; * History of known liver disease (by serology: aspartate aminotransferase or alanine aminotransferase ≥ 3 times above upper limit of normal determined by lab review, imaging or biopsy: determined by patient history); * History of kidney disease (patient history and/or estimated glomerular filtration rate less than 45 mL/min/1.73m²); * History of diabetes mellitus: * History of cardiovascular disease (MI, CHF); * Current prescription medication use for diabetes; * Medication affecting glucose metabolism or appetite or immunosuppression; * Dietary restrictions: currently following vegetarian or vegan dietary pattern; * Currently following intermittent fasting or time restricted feeding pattern or use in the last 3 months; * Night shift worker (work schedule does not involve any period of work from 10 PM to 5 AM either on a regular or rotating basis); * History of weight loss \>5% in the last …