Fasting three days per week may be the best diet strategy for weight loss, a new CU study says episode artwork

EPISODE · Apr 25, 2025 · 8 MIN

Fasting three days per week may be the best diet strategy for weight loss, a new CU study says

from In The NOCO · host KUNC

If you've tried a slew of dieting routines with minimal success – think the Keto Diet, Caveman Diet, or South Beach Diet – a new study says you might have better luck fasting a few days per week.  University of Colorado researchers recently found that participants who fasted three days each week were more successful at losing weight than participants who followed a reduced-calorie diet every day. The fasting group saw 60 percent more weight loss than the group that reduced its calorie intake every day. Victoria Catenacci led the study. She’s an associate professor of endocrinology at the University of Colorado School of Medicine. She spoke with Erin O’Toole about why the three-days-per-week fasting model was helpful for many participants – and why it was an easier plan to stick with. (She also noted that if you have a health condition, it’s important to check with your doctor before adopting a diet like this.) Sign up for the In The NoCo newsletter: Visit KUNC.orgQuestions? Feedback? Story ideas? Email us: [email protected] what you're hearing? Help more people discover In The NoCo by rating the show on your favorite podcast app. Thanks!Host and Producer: Erin O'TooleProducer: Ariel LaveryExecutive Producer: Brad TurnerTheme music by Robbie ReverbAdditional music by Blue Dot SessionsIn The NoCo is a production of KUNC News and Community Radio for Northern Colorado.

If you've tried a slew of dieting routines with minimal success – think the Keto Diet, Caveman Diet, or South Beach Diet – a new study says you might have better luck fasting a few days per week.  University of Colorado researchers recently found that participants who fasted three days each week were more successful at losing weight than participants who followed a reduced-calorie diet every day. The fasting group saw 60 percent more weight loss than the group that reduced its calorie intake every day. Victoria Catenacci led the study. She’s an associate professor of endocrinology at the University of Colorado School of Medicine. She spoke with Erin O’Toole about why the three-days-per-week fasting model was helpful for many participants – and why it was an easier plan to stick with. (She also noted that if you have a health condition, it’s important to check with your doctor before adopting a diet like this.) Sign up for the In The NoCo newsletter: Visit KUNC.orgQuestions? Feedback? Story ideas? Email us: [email protected] what you're hearing? Help more people discover In The NoCo by rating the show on your favorite podcast app. Thanks!Host and Producer: Erin O'TooleProducer: Ariel LaveryExecutive Producer: Brad TurnerTheme music by Robbie ReverbAdditional music by Blue Dot SessionsIn The NoCo is a production of KUNC News and Community Radio for Northern Colorado.

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Fasting three days per week may be the best diet strategy for weight loss, a new CU study says

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This episode was published on April 25, 2025.

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If you've tried a slew of dieting routines with minimal success – think the Keto Diet, Caveman Diet, or South Beach Diet – a new study says you might have better luck fasting a few days per week.  University of Colorado researchers recently found...

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