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Essentials: Effects of Fasting & Time Restricted Eating on Fat Loss & Health

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Essentials: Effects of Fasting & Time Restricted Eating on Fat Loss & Health

Huberman Lab

2025/08/28
Huberman Lab

Huberman Lab

2025/08/28
OverviewShownoteHighlightsTranscriptChaptersPins

Shownote

In this Huberman Lab Essentials episode, I explore intermittent fasting and time-restricted eating, highlighting the positive benefits for weight loss, metabolism, organ health, circadian rhythms and cellular repair. I explain a practical framework for designing a time-restricted eating window that aligns with your lifestyle, exercise schedule and social schedule. I also cover what breaks a fast, how to support fasting with tools like salt intake and post-meal walks, and the use of fasting-related supplements, including berberine and metformin. Read the episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Carbon: https://joincarbon.com/huberman LMNT: https://drinklmnt.com/huberman Joovv: https://joovv.com/huberman Timestamps (00:00) Intermittent Fasting, Time-Restricted Eating (TRE) (00:50) Diet, Weight Loss, Calories & Hormones (05:50) Body’s Response to Eating vs Fasting, Fasting Duration (09:04) Sponsor: Carbon (10:50) Time-Restricted Feeding & Metabolic Benefits, Circadian Gene Rhythm (16:19) Optimal Meal Timing, Tool: Extend Sleep-Related Fasts (21:29) Sponsors: AG1 & LMNT (24:02) Eating Window Length, Tools: Adjusting TRE for Building Muscle, Regularity (26:55) Accelerate Transition to Fasting, Glucose Clearing, Tool: After-Meal Walk (28:36) Metformin, Berberine, Continuous Glucose Monitors; Cell Growth vs Repair, mTOR (31:46) Gut Microbiome; Transitioning to Intermittent Fasting & Individualization (34:03) Tool: 8-Hour Feeding Window & Weight Loss (35:25) Sponsor: Joovv (36:40) What Breaks a Fast?, Sugar; Tool: Using Salt to Support Fasting (39:42) Tool: Ideal Feeding Window Guidelines; Exercise & Social Considerations Disclaimer & Disclosures Learn more about your ad choices. Visit megaphone.fm/adchoices

Highlights

Intermittent fasting and time-restricted eating have gained attention for their potential to improve health, support weight loss, and enhance metabolic function. This episode dives into the science behind these dietary strategies, explaining how they work in relation to hormones, circadian rhythms, and cellular repair. The discussion also considers how individuals can tailor these practices to fit their unique lifestyles and goals.
00:00
Andrew Huberman introduces intermittent fasting and its health benefits.
04:14
Time-restricted feeding improves weight loss and health
14:19
Time-restricted feeding improves liver health and metabolic markers.
19:42
Ending calorie intake by 8 p.m. helps transition into a fasted state for optimal sleep and metabolic function.
21:31
Try AG1 with new flavors and get a welcome kit
24:07
Feeding windows of 7-9 hours offer major health benefits and are easier to follow.
27:04
A 20-30 minute post-meal walk can speed up the transition to a fasted state
28:42
Berberine and metformin mimic fasting, promoting cellular repair.
32:00
Time-restricted feeding boosts microbial proliferation
34:09
Eight-hour time-restricted feeding leads to weight loss and reduced blood pressure without calorie counting.
36:47
Water, tea, black coffee, and caffeine pills generally don't break a fast, while sugar and large meals do.
43:07
A post-meal walk and supplements can aid glucose regulation.

Chapters

Intermittent Fasting, Time-Restricted Eating (TRE)
00:00
Diet, Weight Loss, Calories & Hormones
00:50
Body’s Response to Eating vs Fasting, Fasting Duration
05:50
Sponsor: Carbon
09:04
Time-Restricted Feeding & Metabolic Benefits, Circadian Gene Rhythm
10:50
Optimal Meal Timing, Tool: Extend Sleep-Related Fasts
16:19
Sponsors: AG1 & LMNT
21:29
Eating Window Length, Tools: Adjusting TRE for Building Muscle, Regularity
24:02
Accelerate Transition to Fasting, Glucose Clearing, Tool: After-Meal Walk
26:55
Metformin, Berberine, Continuous Glucose Monitors; Cell Growth vs Repair, mTOR
28:36
Gut Microbiome; Transitioning to Intermittent Fasting & Individualization
31:46
Tool: 8-Hour Feeding Window & Weight Loss
34:03
Sponsor: Joovv
35:25
What Breaks a Fast?, Sugar; Tool: Using Salt to Support Fasting
36:40
Tool: Ideal Feeding Window Guidelines; Exercise & Social Considerations
39:42

Transcript

Andrew Huberman: Welcome to Huberman Lab Essentials, where we revisit past episodes for the most potent and actionable science-based tools for mental health, physical health, and performance. I'm Andrew Huberman, and I'm a professor of neurobiology and oph...