• Dr. Peterson is an internationally recognized researcher in the field of intermittent fasting. Her research focuses on daily intermittent fasting, which is also known as time-restricted eating (TRE). She is the PI of several clinical trials on TRE and serves as a co-investigator or consultant on a handful of other studies on intermittent fasting.. She was the first to test early time-restricted eating (early TRE or eTRE) in humans--a version of TRE that involves eating early in the day to be in alignment with circadian rhythms in metabolism. Moreover, she is currently is the PI of the largest randomized controlled trial of intermittent fasting in humans—a 344-person study in adults with type 2 diabetes. Having trained in metabolism and nutrition at Pennington Biomedical Research Center and in chronobiology at Brigham and Women’s Hospital, the goal of her research is to develop novel dietary interventions involving intermittent fasting, chronobiology, and diet quality to treat cardiometabolic diseases such as type 2 diabetes and obesity. As secondary interests, she also performs mathematical modeling of body composition and metabolic data. Her research has been featured in more than 50 media outlets, including NBC Nightly News, The New York Times, The Washington Post, Wall Street Journal, Good Morning America, the BBC, and Scientific American, and has reached a circulation of more than 104 million people around the world.
  • Selected Publications

    Academic Article

    Year Title Altmetric
    2022 Effectiveness of Early Time-Restricted Eating for Weight Loss, Fat Loss, and Cardiometabolic Health in Adults with Obesity: A Randomized Clinical TrialJAMA Internal Medicine.  182:953-962. 2022
    2022 Nightshift Work and Nighttime Eating Are Associated With Higher Insulin and Leptin Levels in Hospital NursesFrontiers in Endocrinology.  13. 2022
    2022 Early time-restricted eating affects weight, metabolic health, mood, and sleep in adherent completers: A secondary analysisObesity2022
    2022 Impact of early time-restricted eating on diet quality, meal frequency, appetite, and eating behaviors: A randomized trialObesity2022
    2022 Understanding heterogeneity of responses to, and optimizing clinical efficacy of, exercise training in older adults: NIH NIA Workshop summaryGeroscience2022
    2021 Caution against Overinterpreting Time-Restricted Eating ResultsJAMA Internal Medicine.  181:877-878. 2021
    2020 Membrane Capacitance from a Bioimpedance Approach: Associations with Insulin Resistance in Relatively Healthy AdultsObesity.  28:2184-2191. 2020
    2020 Therapeutic time-restricted feeding reduces renal tumor bioluminescence in mice but fails to improve anti-CTLA-4 efficacy 2020
    2020 Resistant Starch Has No Effect on Appetite and Food Intake in Individuals with PrediabetesJournal of the Academy of Nutrition and Dietetics.  120:1034-1041. 2020
    2020 Short-term time-restricted feeding is safe and feasible in non-obese healthy midlife and older adultsGeroscience.  42:667-686. 2020
    2019 Early Time-Restricted Feeding Reduces Appetite and Increases Fat Oxidation But Does Not Affect Energy Expenditure in HumansObesity.  27:1244-1254. 2019
    2019 An intensive lifestyle intervention to treat type 2 diabetes in the republic of the marshall islands: Protocol for a randomized controlled trialFrontiers in Nutrition.  6. 2019
    2019 Early time-restricted feeding improves 24-hour glucose levels and affects markers of the circadian clock, aging, and autophagy in humansNutrients.  11. 2019
    2019 Illustration of Measurement Error Models for Reducing Bias in Nutrition and Obesity Research Using 2-D Body Composition DataObesity.  27:489-495. 2019
    2019 A Systematic Scoping Review of Surgically Manipulated Adipose Tissue and the Regulation of Energetics and Body Fat in AnimalsObesity.  27:1404-1417. 2019
    2019 Intermittent Fasting Induces Weight Loss, but the Effects on Cardiometabolic Health are Modulated by Energy BalanceObesity.  27:11. 2019
    2019 Targeting glucose metabolism to enhance immunotherapy: Emerging evidence on intermittent fasting and calorie restriction mimeticsFrontiers in Immunology.  10. 2019
    2018 Effect of 12 wk of resistant starch supplementation on cardiometabolic risk factors in adults with prediabetes: A randomized controlled trialAmerican Journal of Clinical Nutrition.  108:492-501. 2018
    2018 Human energy expenditure: advances in organ-tissue prediction modelsObesity Reviews.  19:1177-1188. 2018
    2018 Circadian regulation of glucose, lipid, and energy metabolism in humans 2018
    2018 Early Time-Restricted Feeding Improves Insulin Sensitivity, Blood Pressure, and Oxidative Stress Even without Weight Loss in Men with PrediabetesCell Metabolism.  27:1212-1221.e3. 2018
    2018 Role of resistant starch on diabetes risk factors in people with prediabetes: Design, conduct, and baseline results of the STARCH trialContemporary Clinical Trials.  65:99-108. 2018
    2017 The use of tri-ponderal mass index and other indices in estimating visceral body fat percentages in adolescentsJAMA Pediatrics.  171:1228. 2017
    2017 Tri-ponderal mass index vs body mass index in estimating body fat during adolescenceJAMA Pediatrics.  171:629-636. 2017
    2017 Establishing energy requirements for body weight maintenance: Validation of an intake-balance method NCT01672632 NCTBMC Research Notes.  10. 2017
    2017 Eight weeks of overfeeding alters substrate partitioning without affecting metabolic flexibility in menInternational Journal of Obesity.  41:887-893. 2017
    2017 Brown adipose tissue does not seem to mediate metabolic adaptation to overfeeding in menObesity.  25:502-505. 2017
    2017 A new universal dynamic model to describe eating rate and cumulative intake curvesAmerican Journal of Clinical Nutrition.  105:323-331. 2017
    2016 Video chat technology to remotely quantify dietary, supplement and medication adherence in clinical trials 2016
    2016 Impact of different fecal processing methods on assessments of bacterial diversity in the human intestineFrontiers in Microbiology.  7. 2016
    2016 Lifestyle modification intervention improves glycemic control in Mongolian adults who are overweight or obese with newly diagnosed type 2 diabetes 2016
    2016 Universal equation for estimating ideal body weight and body weight at any BMIAmerican Journal of Clinical Nutrition.  103:1197-1203. 2016
    2016 Why are there race/ethnic differences in adult body mass index-adiposity relationships? A quantitative critical reviewObesity Reviews.  17:262-275. 2016
    2016 The thermogenic responses to overfeeding and cold are differentially regulatedObesity.  24:96-101. 2016
    2015 Physical Activity and the Missing CaloriesExercise and Sport Sciences Reviews.  43:107-108. 2015
    2015 Scaling of adult regional body mass and body composition as a whole to height: Relevance to body shape and body mass indexAmerican Journal of Human Biology.  27:372-379. 2015
    2014 MITEoR: A scalable interferometer for precision 21 cm cosmologyMonthly Notices of the Royal Astronomical Society.  445:1084-1103. 2014
    2014 Scaling of adult body weight to height across sex and race/ethnic groups: Relevance to BMIAmerican Journal of Clinical Nutrition.  100:1455-1461. 2014
    2014 Glycemic control is impaired in the evening in prediabetes through multiple diurnal rhythmsJournal of Diabetes and Its Complications.  28:836-843. 2014
    2014 Ten nights of moderate hypoxia improves insulin sensitivity in obese humansDiabetes reviews (Alexandria, Va.).  37. 2014
    2013 Ten nights of moderate hypoxia improves insulin sensitivity in obese humansDiabetes reviews (Alexandria, Va.).  36. 2013
    2013 Relationships between body roundness with body fat and visceral adipose tissue emerging from a new geometrical modelObesity.  21:2264-2271. 2013
    2013 Resveratrol vs. calorie restriction: Data from rodents to humansExperimental Gerontology.  48:1018-1024. 2013
    2013 Testing multifield inflation: A geometric approachPhysical Review D.  87. 2013
    2013 Design features of the diabetes and periodontal therapy trial (DPTT): A multicenter randomized single-masked clinical trial testing the effect of nonsurgical periodontal therapy on glycosylated hemoglobin (HbA1c) levels in subjects with type 2 diabetes and chronic periodontitisContemporary Clinical Trials.  36:515-526. 2013
    2012 Skeletal muscle mitochondria and aging: A reviewJournal of Aging Research.  2012. 2012
    2012 Evolving concepts on adjusting human resting energy expenditure measurements for body sizeObesity Reviews.  13:1001-1014. 2012
    2011 Non-Gaussianity in two-field inflationPhysical Review D.  84. 2011
    2011 Testing two-field inflationPhysical Review D.  83. 2011
    2002 Sphingosine-1-phosphate phosphohydrolase in regulation of sphingolipid metabolism and apoptosis. 2002
    2002 Sphingosine-1-phosphate and lipid phosphohydrolases. 2002
    2002 Characterization of murine sphingosine-1-phosphate phosphohydrolase.Journal of Biological Chemistry.  277:8920-8927. 2002
    2001 Lost variables in Sagittarius and Cygnus recovered on Nantucket plates. 2001
    2000 Molecular cloning and characterization of a lipid phosphohydrolase that degrades sphingosine-1- phosphate and induces cell death. 2000

    Education And Training

  • Master of Science in Health Professions and Related Programs, Tulane University 2015
  • Doctor of Science or Mathematics in Physics, Harvard University 2011
  • Master of Science in Technical and Scientific Communication, Imperial College London 2004
  • Master of Science in Applied Mathematics, University of Cambridge 2003
  • Bachelor of Science or Mathematics in Physics, Georgetown University 2002
  • Full Name

  • Courtney Peterson