Reading time: 6 minutes
What I Discuss:
- How I’ve been microdosing the peptide retatrutide to support appetite control and cognitive and cardiovascular health, and why this tiny dose has dramatically reduced my hunger without the usual side effects…01:52
- An easy way to make ultra‑processed foods a bit healthier is by picking high‑protein options that help you feel full and burn more calories…05:19
- An amazing study showing how just a few weeks of eating only wild, foraged foods can quickly improve your gut microbiome and bring back beneficial ancient bacteria missing from modern diets…10:23
- Why taking short movement breaks during the day is crucial for your heart, metabolism, and brain health (even if you work out) because long, 8‑hour sitting stretches still harm your body…20:22
- Why kids and adults get bigger brain benefits from open‑skill, unpredictable sports like basketball or tennis, especially outdoors, compared to routine, predictable workouts…28:36
- Which popular sport secretly outshines the rest for longevity, and why the way you move could matter more for aging than you think…34:25
In this fascinating solosode, you'll receive a range of practical hacks and cutting-edge research to elevate your health, fitness, and mental performance. The episode kicks off with an unexpected experiment featuring retatrutide—a triple-action peptide that targets multiple hunger and metabolism pathways. You'll explore the nuances of microdosing retatrutide, and I'll reveal how tiny tweaks in dosing can yield powerful effects on appetite, cognition, and even social behavior around food.
Next, you'll get to discover how to make ultra-processed foods less destructive by seeking out their higher-protein versions. Even on the road or in a pinch—think gas station snacks—there’s a hierarchy among processed foods and picking those with enriched protein content can help reduce calorie load and support metabolic rate.
I also spotlight a remarkable case study: what happens to your gut microbiome if you go “all-in” on wild foods for four weeks? The profound shifts in ancient bacteria and gut diversity, as well as what it takes for changes to persist, are dissected, providing inspiration about the gut-healing potential of ditching processed fare and embracing nature’s bounty. You’ll also gather resources and book recommendations to facilitate your own wild food adventure!
Finally, you’ll explore how breaking up sedentary stretches, even after a solid gym session, can dramatically improve metabolic health, inflammation, and even brain function. You’ll dive into the intriguing research on which sports make kids and adults smarter, why novelty is key to brain expansion, and why racket sports like pickleball might just be your secret weapon for longevity.
This is an episode brimming with actionable takeaways, emerging science, and a healthy dose of curiosity—poised to ignite your journey to a more complete, boundless you.
Please Scroll Down for the Sponsors, Resources, and Transcript
Episode Sponsors:
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Resources from this episode:
- Podcasts:
- The Wildatarian Diet: Living As Nature Intended: A Customized Nutritional Approach for Optimal Health, Energy and Vitality.
- Time Traveling To Heal Trauma, Hyper-Customization Of Diet & Supplements, Past Life vs. Epigenetics & Much More With Teri Cochrane.
- Why You Should Try Sleeping On The Floor, The “Furniture-Free” Home, Building A Better Butt, Smartphone Solutions & More With Katy Bowman.
- Virtual Reality & Psychedelics, Censorship Of Health Websites, The Wild Diet, Chewy-Chew Chocolate Chip Cookies & Much More With Abel James.
- Foilboarding Mastery, Hidden Monopoly Secrets, Digital Addiction & How To Make Family Dinners Fun Again, With Exploding Kitten’s Elan Lee.
- Books:
- Eating on the Wild Side: The Missing Link to Optimum Health by Jo Robinson
- The Wild Diet: Go Beyond Paleo to Burn Fat, Beat Cravings, and Drop 20 Pounds in 40 Days by Abel James
- Boundless Kitchen by Ben Greenfield
- Boundless Cookbook by Ben Greenfield
- The 5 Types of Wealth: A Transformative Guide to Design Your Dream Life by Sahil Bloom
- Studies:
- Short-term effects of high-protein, lower-carbohydrate ultra-processed foods on human energy balance
- Consumption of only wild foods induces large scale, partially persistent alterations to the gut microbiome
- Does physical activity attenuate, or even eliminate, the detrimental association of sitting time with mortality? A harmonised meta-analysis of data from more than 1 million men and women
- Effects of replacing sedentary time with alterations in physical activity or sleep on mood states in Chinese young adults during the pandemic
- Objectively Measured Moderate- and Vigorous-Intensity Physical Activity but Not Sedentary Time Predicts Insulin Resistance in High-Risk Individuals
- Exercise snacks and physical fitness in sedentary populations
- Long periods of sedentary behavior may increase cardiovascular risk in older women
- Sedentary behavior and cardiovascular disease in older women: The Objective Physical Activity and Cardiovascular Health (OPACH) Study
- Sedentarism and Chronic Health Problems
- Physical Exercise and Health, 6: Sedentary Time, Independent of Health-Related Physical Activity, as a Risk Factor for Dementia in Older Adults
- Cognitive Benefits of Open-Skill Sports in Childhood: Evidence from the ABCD Study
- The cognitive benefits of basketball training compared to a combined endurance and resistance training regimen: a four-month intervention study
- The Effects of Outdoor versus Indoor Exercise on Psychological Health, Physical Health, and Physical Activity Behaviour: A Systematic Review of Longitudinal Trials
- Other Resources:
- Retatrutide Peptide
- Peptual Peptides (use code BGL10 to get a 10% discount)
- Quest Protein Bars
- Core Power Protein Shakes
- OIKOS Triple Zero High Protein Greek Yogurt
- Jack Link’s
- Oberto Jerky
- StarKist Tuna
- Exploding Kittens Game
- Coyote Game
Upcoming Events:
- Health Optimisation Summit — London, UK: September 13–14, 2025
Grab your spot at the Health Optimisation Summit, Europe’s premier biohacking and wellness event happening in London this fall. I’ll be taking the stage alongside 35+ leading experts to share my latest strategies for building boundless energy, resilience, and performance. This two-day experience is packed with hands-on insights and next-level protocols, from wearable tech and regenerative therapies to metabolic upgrades and brain-boosting tools. If you’re serious about optimizing your biology, this is the place to be. Use my discount code to save on tickets here.
- The Ark Retreat — Spokane, WA
Join me at The Ark Retreat, an exclusive, cutting-edge wellness experience at my fully biohacked home in Spokane. You'll get hands-on access to the latest biohacking tech, organic farm-to-table meals, personalized health insights, and the chance to connect with a like-minded community—all in a perfected environment designed to optimize air, light, water, and energy. Don't miss this opportunity to transform your health and build lasting connections. Click here to snag one of 300 spots now.
- Keep up on my LIVE appearances by following bengreenfieldlife.com/calendar!
Do you have questions, thoughts, or feedback for me? Leave your comments below, and I will reply!
2 Responses
Peptual doesn’t have retatrutide listed on their website. Also, if the drug is still in clinical trials, is it advisable to take it prior to FDA approval?
“Right now I weigh 203 pounds, I’m 4% body fat.”
By what measure? If this were true, you’d be ready for a bodybuilding show:
3-4% body fat: Ridiculously lean. Many bodybuilders drop to a body fat percentage of about 3-4% when they are preparing for competitions. At this level of body fat, the muscles, veins, and striations (the rod looking stripes on a muscle) are very visible.
Ben – show me your DEXA scan please. I myself am ripped at 17% BF (veins in abdomen) on DEXA and on a Tanita scale it is usually 9-11% based on time of the day….
Thanks, Phil