Time Restricted Feeding in Autosomal Dominant Polycystic Kidney Disease

Exclusion Criteria

• •1. Diabetes mellitus (diagnosis or fasting glucose \>126 mg/dL or Hemoglobin A1C \>6.5%)
• •2. Current nicotine use or history of use in the past 12 months
• •3. Alcohol or substance abuse (self-report or undergoing treatment)
• •4. History of hospitalization or major surgery within the last 3 months
• •5. Untreated dyslipidemia (low density lipoprotein cholesterol \> 190 mg/dL or triglycerides \>400 mg/dL)
• •6. Uncontrolled hypertension (systolic blood pressure \> 160 or diastolic blood pressure \>100 mm Hg)
• •7. Pregnancy, lactation, or unwillingness to use adequate birth control
• •8. Cardiovascular disease, peripheral vascular disease, cerebrovascular disease, significant pulmonary or gastrointestinal disease (described below), cancer (within the last 5 years, except skin cancer or other cancers considered cured with excellent prognosis)
• •9. Significant gastrointestinal disorders including: chronic malabsorptive conditions, peptic ulcer disease, Crohn's disease, ulcerative colitis, chronic diarrhea, or active gallbladder disease
• •10. Regular use of prescription or over-the-counter medications that may affect weight, appetite, food intake, or energy metabolism (e.g. appetite suppressants, lithium, stimulants, anti-psychotics, tricyclic antidepressants; study physician will be consulted as needed; antibiotics started during the intervention period are not an exclusion); regular use of obesity pharmacotherapeutic agents within the last 6 month
• •11. History of clinically diagnosed eating disorder including anorexia nervosa, bulimia, binge eating disorder. Score \>20 on the Eating Attitudes Test (EATS)-2653 will require further assessment by the Study MD to determine if it is appropriate for the subject to participate in the study.
• •12. Weight loss \>5% in past 3 months for any reason except post-partum weight loss; weight gain \>5% in past 3 months requires assessment by PI to determine reason for weight gain and if it is appropriate for the subject to participate in the study.
• •13. Untreated hyper- or hyperthyroidism (TSH outside of normal range for laboratory or history of uncontrolled thyroid disorder). History of thyroid disorder or current thyroid disease treated with stable medication regimen for at least 6 months in acceptable.
• •14. Current severe depression or history of severe depression within the previous year, based on DSM-IV-TR criteria for Major Depressive Episode. Score \> 18 on the Beck Depression Inventory will require further assessment by the Study MD to determine if it is appropriate for the subject to participate in the study.
• •15. History of other significant psychiatric illness (e.g. psychosis, schizophrenia, mania, bipolar disorder) which in the opinion of the Study MD would interfere with ability to adhere to dietary interventions.
• •16. Inability to cooperate with/clinical contraindication for MRI including severe claustrophobia, implants, devices, or non-removable body piercings