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Fasting For Life

Ep. 297 - Volumetric Diet vs Intermittent Fasting Study | 16:8 Time-Restricted Eating Wins for Adherence | Low vs High Hedonic Foods | Breaking Fasts with Volume Foods | Sustainable Weight Loss | New Fasting Persona Quiz!

Fasting For Life

Scott Watier

Nutrition, Health & Fitness, Alternative Health

4.61.1K Ratings

🗓️ 2 September 2025

⏱️ 30 minutes

🧾️ Download transcript

Summary

In this choose-your-own-adventure episode, Dr. Scott Watier and Tommy Welling compare volumetric eating—a strategy focused on consuming larger portions of low-calorie-density foods like vegetables, soups, and water-rich fruits—against 16:8 time-restricted eating in a 12-week study of 37 moderately active adults, revealing that both approaches produced nearly identical improvements in body weight, fat mass, BMI, and waist measurements without sacrificing lean muscle. The hosts unpack the surprising adherence difference showing fasting participants stuck to their plan 83% of the time (5.8 days per week) versus 76% for volumetric dieters (5.3 days weekly), attributing fasting's edge to simplified rules, reduced decision fatigue, and minimal food noise compared to the mental burden of constantly evaluating energy density and portions. They introduce the hedonic food scale distinguishing between high-pleasure calorie-dense foods like pizza and ice cream versus low-hedonic options like raw vegetables and melons, challenging listeners to leverage both approaches by using volumetric foods as strategic fast-breakers or late-night alternatives to pantry raids. With practical guidance on prioritizing protein-dense whole foods like steak that climb the hedonic scale while providing superior satiety, implementing volume-based choices to ease window-closing struggles, and recognizing that 7% better adherence compounds dramatically over months and years, this episode delivers the permission to combine strategies rather than viewing them as mutually exclusive paths to sustainable weight management. ⁠Take the NEW FASTING PERSONA QUIZ! - The Key to Unlocking Sustainable Weight Loss With Fasting!⁠⁠⁠⁠⁠⁠ Resources and Downloads: ⁠⁠⁠⁠⁠⁠SIGN UP FOR THE DROP OF THE ULTIMATE GUIDE TO BLOOD SUGAR CONTROL⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠GRAB THE OPTIMAL RANGES FOR LAB WORK HERE! - NEW RESOURCE! ⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠FREE RESOURCE - DOWNLOAD THE NEW BLUEPRINT TO FASTING FOR FAT LOSS!⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠SLEEP GUIDE DIRECT DOWNLOAD⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠DOWNLOAD THE FASTING TRANSFORMATION JOURNAL HERE!⁠⁠⁠⁠⁠⁠ Partner Links: Get your⁠⁠⁠⁠⁠⁠ FREE BOX OF LMNT⁠⁠⁠⁠⁠⁠ hydration support for the perfect electrolyte balance for your fasting lifestyle with your first purchase⁠⁠⁠⁠⁠⁠ here!⁠⁠⁠⁠⁠⁠ Get ⁠⁠⁠⁠⁠⁠25% off a Keto-Mojo⁠⁠⁠⁠⁠⁠ blood glucose and ketone monitor (discount shown at checkout)! ⁠⁠⁠⁠⁠⁠Click here!⁠⁠⁠⁠⁠⁠ Our Community: Let’s continue the conversation. Click the link below to JOIN the ⁠⁠⁠⁠⁠⁠Fasting For Life Community⁠⁠⁠⁠⁠⁠, a group of like-minded, new, and experienced fasters! The first two rules of fasting need not apply! If you enjoy the podcast, please tap the stars below and consider leaving a short review on Apple Podcasts/iTunes. It takes less than 60 seconds, and it helps bring you the best original content each week. We also enjoy reading them! Article Links: https://pmc.ncbi.nlm.nih.gov/articles/PMC12175453/pdf/12937_2025_Article_1167.pdf

Transcript

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0:00.0

Hello, I'm Dr. Scott Wadier.

0:03.0

And I'm Tommy Welling, and you're listening to the Fasting for Life podcast.

0:07.0

This podcast is about using fasting as a tool to regain your health, achieve ultimate wellness, and live the life you truly deserve.

0:15.0

Each episode is a short conversation on a single topic with immediate actionable steps.

0:20.0

We cover everything

0:21.2

from fat loss and health and wellness to the science of lifestyle design. We started fasting

0:26.0

for life because of how fasting has transformed our lives and we hope to share the tools

0:30.0

that we have learned along the way.

0:31.6

Hey everyone, welcome to the Fasting for Life podcast.

0:42.3

My name is Dr. Scott Wadier, and I'm here as always.

0:44.3

I'm a good friend and colleague, Tommy Welling.

0:45.3

Good afternoon to you, sir.

0:46.3

Hey, Scott, how are you?

0:48.3

Doing fantastic, my friend, excited for today's conversation.

0:51.3

We're going to talk about a study that came out of the Journal of Nutrition

0:56.4

in 2025 back in January, and its similar body composition outcomes following a volumetric

1:03.0

diet and time-restricted eating in middle-aged individuals, a 12-week randomized controlled

1:08.0

trial.

1:09.0

Excide to have this conversation. We're going to talk about

1:11.5

long-term sustainability. We're going to talk about choose your own adventure, fasting versus

1:16.2

ad libidum eating or kind of the eat less, move more, calorie in, calorie-out tracking type

1:22.5

model. And as always, we'll apply it to a fasting lifestyle and give you our thoughts on it and

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