#743 - Why Men’s Testosterone Is Half Their Grandfathers — with Ben Greenfield

The Tai Lopez Show

Tai Lopez

Business

4.8 • 6.9K Ratings

🗓️ 20 September 2025

⏱️ 82 minutes

🔗️ Recording | iTunes | RSS

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Summary

From testosterone levels to long COVID, this conversation between Tai Lopez and Ben Greenfield covers some of the biggest health questions men (and women) are facing today.

Ben — a New York Times bestselling author, top biohacker, and health expert who’s been featured on Joe Rogan — shares his latest insights on:

The #1 thing killing Americans today (and what’s being overlooked)
Why men’s testosterone is half of what their grandfathers had
The truth about COVID, vaccines, and long COVID treatments
Diet debates: keto vs. carnivore vs. Mediterranean vs. pescatarian
Peptides, stem cells, and regenerative medicine breakthroughs
The dangers of EMF, microplastics, and modern lighting on health
Longevity strategies, from cold plunges and saunas to wine and fasting

This is a deep dive into what actually works, what’s a scam, and where modern science and old wisdom collide.

▶ Watch until the end for rapid-fire rankings — Ben rates everything from red wine and kettlebells to TRT, seed oils, and online habits.

For all links and resources mentioned in this episode, visit: TaiLopez.com/benpodcast

See omnystudio.com/listener for privacy information.

Transcript

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0:00.0	Is sugar the number one thing killing Americans?
0:04.0	Eating too much food is the number one thing killing Americans.
0:08.0	If you're burning 2,200 calories a day, you could lose weight and achieve pretty good body composition.
0:14.0	If you were drinking 2,000 calories of Coca-Cola a day.
0:17.0	What was COVID? Government was it Bill Gates? My mom thinks it was Bill Gates.
0:22.5	Some people say it was bat. Some people say it was in a lab. I have no clue. If I had to guess,
0:27.1	there was research being done in a lab on a virus that he escaped. Why is the average man's testosterone
0:33.2	like a half of what his grandfathers was? The absence of fear and danger and discomfort because it is so easy to be sexually, physically,
0:44.1	and economically satisfied right now in your basement with AI porn.
0:48.8	Here in my garage.
0:52.0	Welcome to the Tai Lopez show.
0:53.7	I'm here with none other than Ben Greenfield.
0:56.0	He's been on Joe Rogan three times, New York Times bestseller.
0:59.6	He's been a mentor to me and one of the most famous biohackers, health experts.
1:05.7	He's just built his complete, probably the greatest biohacking home in America cost of millions we're
1:14.2	going to be talking about that we're going to talk about the scams in health we're going to
1:18.0	talk about the things that actually work the peptides we're going to talk about a zempic we're
1:22.6	going to talk about you know which diet keto pes, carnivore, what's the best?
1:29.0	So, been on the show, kind of was one of the first health people I brought on.
1:33.7	And I was like, man, there's so much going on in the world.
1:36.7	I just want to bring you on and just almost do like a bullet, like question.
1:42.0	Like, I'm just going to start with one.
	...

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