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Boundless Life

A Fascinating Fireside Chat with Actor Luke Cook: Cyclical Keto, Ketones, Cold Plunges, Nootropics, Peptides & Living VITAL to the End!

Boundless Life

Ben Greenfield

Self-improvement, Education, Health & Fitness, Fitness

4.65.3K Ratings

🗓️ 9 October 2025

⏱️ 55 minutes

🧾️ Download transcript

Summary

Full show notes: https://bengreenfieldlife.com/firesidechatla/

In this special live-recorded episode, actor Luke Cook—known for Chilling Adventures of Sabrina and Guardians of the Galaxy Vol. 2—joins me for a raw, unfiltered conversation about what it really means to live well. Recorded during A Boundless Evening at HUME Los Angeles, this fireside chat brings together curiosity, science, and honest reflections on health, performance, and purpose.

We start with the rhythms of daily life—how I approach mornings, training, and eating while traveling—and why balance beats perfection. You’ll hear how my cyclical keto approach helps me stay sharp and grounded while still enjoying the moments that matter. From movement habits and fasted training to the little environmental tweaks that keep me active throughout the day, we explore how health can be both sustainable and joyful.

We dive into the evolving world of biohackingcold plunges, nootropics, and stress adaptation—through both skepticism and lived experience.

The conversation goes deeper than supplements or science. We reflect on the connection between discipline and creativity, the balance between ambition and family, and why my personal philosophy centers on healthspan, not just lifespan.

Episode Sponsors: 

Pique: Pique Teas are where plants and science intersect to produce teas and supplements of unrivaled efficacy, purity, and convenience. Go to Piquelife.com/Ben to get 20% off for life, plus a free starter kit with a rechargeable frother and glass beaker to elevate your ritual.

Sunlighten: Discover the ultimate efficiency in wellness with the Sunlighten Solo System, a compact, portable far infrared sauna designed to detoxify, reduce stress, improve sleep, and enhance heart health—all while fitting seamlessly into your daily routine. Save $600 or more today and start biohacking your mind, body, and spirit at get.sunlighten.com/ben.

Hiya: Give your kids the full-body nourishment they need to grow into healthy adults. I’ve secured a special deal with Hiya on their best-selling children's vitamin—get 50% off your first order today! To claim this deal, you must go to hiyahealth.com/BEN (it is not available on their regular website).

Qualia: Qualia Stem Cell combines 15 science-backed ingredients to support stem cell proliferation, migration, and differentiation, so you can heal and repair with a youthfulness that DEFIES your age. Visit qualialife.com/boundless and use code BOUNDLESS for 15% off your order.

Organifi Shilajit Gummies: Harness the ancient power of pure Himalayan shilajit anytime you want with these convenient and tasty gummies. Get them now for 20% off at organifi.com/Ben.

See omnystudio.com/listener for privacy information.

Transcript

Click on a timestamp to play from that location

0:00.0

My name is Ben Greenfield, and on this episode of the Boundless Life podcast, if you eat and then

0:06.5

workout or you eat after you work out, as long as we're talking about the same number of

0:10.8

calories by the end of whatever that two or three hour time frame is, it doesn't really matter.

0:16.0

I think the main reason to workout facet is, welcome to the boundless life with me your host ben

0:23.2

greenfield i'm a personal trainer exercise physiologist and nutritionist and i'm passionate about

0:28.7

helping you discover unparalleled levels of health fitness longevity and beyond.

0:47.6

So if there's one thing that I have come to realize on my own path of growth and self-awareness,

0:50.2

it's that clarity is really important.

0:52.2

You can't show up fully in your purpose,

0:52.5

your work,

1:11.5

your relationships if your mind is kind of scattered and your body's running on empty and your brain feels foggy. And that is where this stuff called Nandaka, which is also very fun to say. Nandaka. It's where Nandaka fits in. This is a daily tea ritual that supports deep focus and calm and energy and productivity. It's a little packet,

1:17.8

a powder. You open it up and you just pour it into hot water. And I like to use a latte frother.

1:23.8

I actually am a glutton for making special fancy brews. So I'll even add like stevia and sea salt to it, even though you don't need any of that. Because it's just real functional mushrooms like

1:27.2

grishi and cortisps, ceremon-grade cacao, fermented tea, and adaptogenic herbs. Every ingredient is sourced for purity and bioavailability. It's like creamy, spiced, hot chocolate, warming, and smooth and deeply comforting and a great alternative if you don't want a huge cup of coffee to start off your day. So you get the stuff from Peak. They make incredible teas. Peek does, but this Nandaka is really cool. You go to peaklife.com slash Ben. That's P-I-Q-U-E-Life.com slash Ben to get 20% off for life, plus a free starter kit with a rechargeable frother. The frother is amazing,

2:01.7

by the way, and a glass beaker to elevate your ritual. That's peaklife.com slash ben,

2:07.1

nourishment for your mind and your body and your mission. Let's talk about light.

2:13.3

Light therapy, especially red light therapy, is one of those underrated tools for performance

2:17.2

and longevity. And infrared light is near the top of those underrated tools for performance and longevity.

2:18.0

And infrared light is near the top of that list, if not at the top of that list.

2:22.2

I'm now using a sauna called Sunlighten.

2:24.4

They have patented heating technology that delivers the highest quantity and quality of infrared on the market.

2:30.5

And these things are sexy.

...

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