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Enter the Lionheart

#210 – Renee Fitton – The Science of Fasting & Fasting-Mimicking Diets

Enter the Lionheart

Lawrence Dunning

Books, Wisdom, Entrepreneurship, Mma, Finance, Jiujitsu, Renaissanceman, Author, Realestate, Goals, Business, Mentor, Philosophy, Ayahuasca, Society & Culture, Psychedelicexplorers

51.2K Ratings

🗓️ 26 November 2025

⏱️ 66 minutes

🧾️ Download transcript

Summary

Renee Fitton is a registered dietitian, entrepreneur, and expert in nutrition, longevity, and healthcare innovation. She specializes in fasting-mimicking diets, cellular renewal, and bridging scientific research with practical health applications. 

She is the Director of Education & Healthcare Sales at ProLon, where she develops sales strategies, educates healthcare practitioners on nutrition and longevity science, and promotes fasting-mimicking diets. She also serves as a Medical Science Liaison (since April 2023).

0.00:    Renee's background as a longevity dietician

8.00:    The power of diet

10.00:  The power of Fasting

14.00:  Why Fasting Mimicking diets are so powerful (Dr. Longo)

21.00: How Fasting Mimicking has insignificant muscle loss

26.00:  How to eat healthy

31.00:  Intermittent fasting (AM versus PM)

41.00: Ideal Evening Meal before athletic events

45.00:  Supporting autophagy and cellular cleanup only in longer fasts

50.00:  Coming off a longer fast/ fasting mimicking diet

56.00:  Meat for athletic performance vs longevity

1.01.00: Different protein powder sources (and L-Protein)

Renee on IG: @fitonnutrition

Prolon website: https://prolonlife.com/

Until next time, love and good vibes. 

Podcast Website: https://enterthelionheart.com/

Check out the latest episode here:

Apple Podcast: https://podcasts.apple.com/us/podcast/enter-the-lionheart/id1554904704

Spotify: https://open.spotify.com/show/4tD7VvMUvnOgChoNYShbcI

Transcript

Click on a timestamp to play from that location

0:00.0

When we talk about metabolic health, that's an umbrella term to pretty much everything that your doctor's checking when you go in for your annual physical, your blood pressure, your cholesterol, your triglycerides, your waist circumference, your blood sugar levels and how on your insulin resistance, all those things.

0:14.5

Those are all considered under that metabolic health piece.

0:17.2

And interestingly, all can be impacted by fasting and fasting mimicking. Skin health,

0:22.6

autoimmune studies have started coming out. There's oncology studies that are coming out.

0:26.3

I mean, the results really are, again, so wide-ranging because of this root cause effect.

0:31.2

So that's why people are so excited about fasting. It's not something new. It's something that is

0:36.2

rooted in our body's natural

0:38.4

ability to heal itself. And we've been able to now show through oh much clinical research

0:44.0

that it has a very wide-ranging impact. A single theme is too narrow for great minds and daring hearts.

1:01.9

Get ready to enter the Lionheart with your host, Laurence Dunning.

1:07.3

Renee, thank you so much for joining me.

1:09.5

I'm so excited to talk about everything health and longevity related.

1:13.6

But maybe we could start with a little bit of your background for people listening.

1:18.0

Absolutely.

1:18.5

Well, first, thank you so much for having me here.

1:20.8

It is always such a pleasure to talk about some topics that really are so near and dear to my heart.

1:26.2

They are near and dear to my heart, they are near and dear to my heart

1:28.0

because I myself am a longevity dietitian by trade.

1:32.1

I have, and how do you get that title?

1:35.0

Well, you get your master's degree in a very specific sect of nutrition, which is longevity

1:42.0

and health span nutrition.

1:46.4

So there's really only one program in the world doing this. It was founded by one of the leading longevity researchers,

...

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