Episode 509: Renee Fitton: Fast-Mimicking: A Smarter Way to Support Longevity

Habits and Hustle

Jen Cohen

Self-improvement, Entrepreneurship, Business, Education, Health & Fitness

4.4 • 800 Ratings

🗓️ 9 December 2025

⏱️ 67 minutes

🔗️ Recording | iTunes | RSS

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Summary

How do you build real longevity without getting trapped in extreme protocols or daily routines that drain you instead of helping you? In this episode of Habits & Hustle, I sit down with a dietitian with a Master’s in Longevity Nutrition to talk about what actually supports aging well. We look at simple, practical strategies that make your body stronger instead of pushing it into burnout. We get into why fast-mimicking works so well, how it triggers real cellular repair, and why short, focused cycles beat everyday restriction. We also talk about muscle protection, what women in midlife need to pay attention to, and the metabolic shifts that happen when you stress the body the right way. Renee Fitton is a longevity dietitian with a Master’s in Longevity Nutrition and VP of Growth at ProLon. She brings a decade of experience in evidence-based nutrition and real-world strategies that help people build a healthier, stronger future. Tune in. What We Discuss: (06:06) What longevity means and why the focus needs to stay on healthspan (09:42) The habits that drive people into decline earlier than they expect (13:29) How environment, access and daily choices shape long-term health (18:09) What happens in the body during a fast and why repair matters with age (20:01) Why multi-day fasts create deeper benefits than everyday restriction (26:32) How fast-mimicking supports fasting benefits while keeping muscle intact (38:26) The changes people notice after five days, from skin to metabolism (44:40) Why finishing a reset often leads to stronger energy and consistency Thank you to our sponsors: Prolon: Get 30% off sitewide plus a $40 bonus gift when you subscribe to their 5-Day Program! Just visit ⁠https://prolonlife.com/JENNIFERCOHEN⁠ and use code JENNIFERCOHEN to claim your discount and your bonus gift. Therasage: Head over to ⁠therasage.com⁠ and use code Be Bold for 15% off Air Doctor: Go to⁠ airdoctorpro.com⁠ and use promo code HUSTLE40 for up to $300 off and a 3-year warranty on air purifiers. Magic Mind: Head over to ⁠www⁠.⁠magicmind.com⁠/jen and use code Jen at checkout. Momentous: ⁠Shop this link⁠ and use code Jen for 20% off Manna Vitality: Visit mannavitality.com and use code JENNIFER20 for 20% off your order Amp fit is the perfect balance of tech and training, designed for people who do it all and still want to feel strong doing it. ⁠Check it out at joinamp.com/jen ⁠ Find more from Jen: Website: ⁠www.jennifercohen.com⁠ Instagram: ⁠@therealjencohen ⁠ Books: ⁠www.jennifercohen.com/books⁠ Speaking: ⁠www.jennifercohen.com/speaking-engagement⁠ Find more from Renee Fitton: Website: ⁠www.fittonnutrition.com⁠ Instagram: ⁠@fittonnutrition

Transcript

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0:00.0	Hi guys, it's Tony Robbins. You're listening to Habits and Hustle. Crush it.
0:06.0	In this episode of Habits and Hustle, I sit down with longevity dietitian Renee Fitten to unpack what truly supports healthy aging and why fast mimicking has become a standout tool.
0:17.8	We break down how it works at the cellular level and why a few focus cycles
0:22.6	beat daily restriction and how the right stress can shift your biology. We cover the differences
0:28.8	between fasting and fast mimicking, how to protect muscle, what midlife women should watch for,
0:35.1	and the metabolic changes people experience on a structured protocol.
0:40.3	Renee also shares why most people feel clearer and more energized after a five-day cycle
0:46.1	and how to fit it into real life without derailing training. If you want a grounded, science-based
0:52.8	look at what actually moves the needle for health span,
0:55.9	this episode lays out the strategies that work.
0:59.2	Please enjoy.
1:06.8	Okay, you guys, we have a fun podcast today.
1:09.8	You know how I love talking about longevity and
1:12.1	biohacking and health and all the things. And today we have Renee, well, we have, we have, we have
1:18.9	Renee, who, I would say, Renee, how would you just, you're a longevity dietitian. Like, it's not,
1:24.9	and how do you press your last thing, Fiton, Fiton? Okay, Renee Fitten. She's a longevity dietitian. Like, it's not, and how do you press you last name? Fitton? Fitton. Okay. Renee Fitton. She's a longevity dietitian who I never really hear anybody calling them that. That's very niche, right? Yeah, it totally is. It's a very unique group of us that can even have this type of title. I got my master's degree, not only in nutrition, but in nutrition, health span,
1:45.2	and longevity. It's one of the only programs. Oh, wow. It's out of USC. It's founded by Dr.
1:50.5	Walter Longo in partnership with USC to help people who are interested in nutrition focus their
1:56.5	nutrition education on longevity and helping people live healthier longer. Oh, I love that. Okay, so I don't
2:01.8	know if you know this, but on this podcast, we always take these shots. They're magic mind.
2:05.9	They're like a performance shot and they have lots of great stuff in it. I want to know,
2:09.9	is this good for our health and our longevity? Yes. No, I, of course, you showed me these and I was like,
	...

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