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Intermittent Fasting and the Circadian Clock. Presented by A/Prof Courtney Peterson, PhD, MSc, MA

Courtney begins by outlining the physiological mechanisms of intermittent fasting. She describes six popular fasting regimes (alternate-day fasting, alternate-day modified fasting, 5:2 diet, fasting-mimicking diet, weekly intermittent energy restriction and time-restricted feeding) and explains the latest research comparing them with regard to compliance, cardiometabolic benefits and weight loss. Using the results from her research on the first ever trial of early time-restricted feeding in humans she explains the relationship between eating and the circadian system. Research which has shown that eating breakfast like a king, lunch like a prince and dinner like a pauper (and have dinner before dark) has cardiometabolic benefits.

Dr Courtney Peterson is an Assistant Professor in the Department of Nutrition Sciences at the University of Alabama at Birmingham. Her research interests include intermittent fasting, circadian rhythms, food groups, and mathematical modelling of metabolism and body composition. The overarching goal of her research is to develop novel dietary interventions to treat type 2 diabetes, obesity, and cardiovascular disease. Dr. Peterson recently conducted the first controlled feeding trial of time-restricted feeding, a form of daily intermittent fasting. She was also the first to combine time-restricted feeding with eating in alignment with the circadian clock. She is the lead scientist on five clinical trials investigating how time-restricted feeding affects glucose metabolism, blood pressure, lipids, circadian rhythms, inflammatory and oxidative stress markers, energy metabolism, autophagy, and gene expression in humans. Dr. Peterson has received The Obesity Society’s Early Career Research Grant, and she holds a Ph.D. in physics from Harvard University and four Master’s degrees.

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More information on chrono nutrition can be found by listening to Gloria Leung’s presentations:

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