Expert profile
Dr. Courtney Peterson
Nutrition science researcher in circadian metabolism
Intermittent fasting • time-restricted eating • circadian metabolism
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About the expert
Focus: Time-restricted eating and circadian biology in humans
Courtney Peterson is a researcher in nutrition science and circadian metabolism at Harvard University. Her lab has conducted some of the first randomized controlled trials in humans on time-restricted eating, including rigorous metabolic-ward studies.
Expert discussions with Dr. Courtney Peterson
Courtney Peterson: What intermittent fasting clinical trials actually show
When you eat may affect your health as much as what you eat. A daily fast of 14 to 16 hours, with more food earlier in the day, may help with weight, blood sugar, and blood pressure. The benefit seems to come from timing, not from burning extra calories.