The Ultimate Human with Gary Brecka - 190. Is Spermidine The Solution To Slow Down Cellular Aging?
Episode Date: August 7, 2025Scientists tracked 829 people for 20 years and discovered that one “embarrassingly named” nutrient, Spermidine, reduced death rates by nearly 40%. This polyamine doesn’t just slow aging, it lite...rally stabilises your DNA and activates cellular repair pathways that tell your cells when to grow, heal, and clean house. You can get therapeutic levels from shitake mushrooms, wheat germ, or fermented foods like kimchi, basically turning your dinner plate into an anti-aging protocol. Join the Ultimate Human VIP community for Gary Brecka's proven wellness protocols! https://bit.ly/4ai0Xwg Thank you to our partners H2TABS: “ULTIMATE10” FOR 10% OFF: https://bit.ly/4hMNdgg BODYHEALTH: “ULTIMATE20” FOR 20% OFF: http://bit.ly/4e5IjsV BAJA GOLD: "ULTIMATE10" FOR 10% OFF: https://bit.ly/3WSBqUa EIGHT SLEEP: SAVE $350 ON THE POD 4 ULTRA WITH CODE “GARY”: https://bit.ly/3WkLd6E COLD LIFE: THE ULTIMATE HUMAN PLUNGE: https://bit.ly/4eULUKp WHOOP: JOIN AND GET 1 FREE MONTH!: https://bit.ly/3VQ0nzW MASA CHIPS: 20% OFF FIRST ORDER: https://bit.ly/40LVY4y VANDY: “ULTIMATE20” FOR 20% OFF: https://bit.ly/49Qr7WE AION: “ULTIMATE10” FOR 10% OFF: https://bit.ly/4h6KHAD A-GAME: “ULTIMATE15” FOR 15% OFF: http://bit.ly/4kek1ij CARAWAY: “ULTIMATE” FOR 10% OFF: https://bit.ly/3Q1VmkC HEALF: 10% OFF YOUR ORDER: https://bit.ly/41HJg6S BIOPTIMIZERS: “ULTIMATE” FOR 15% OFF: https://bit.ly/4inFfd7 RHO NUTRITION: “ULTIMATE15” FOR 15% OFF: https://bit.ly/44fFza0 GOPUFF: GET YOUR FAVORITE SNACK!: https://bit.ly/4obIFDC GENETIC TEST: https://bit.ly/3Yg1Uk9 Watch the “Ultimate Human Podcast” every Tuesday & Thursday at 9AM EST: YouTube: https://bit.ly/3RPQYX8 Podcasts: https://bit.ly/3RQftU0 Connect with Gary Brecka Instagram: https://bit.ly/3RPpnFs TikTok: https://bit.ly/4coJ8fo X: https://bit.ly/3Opc8tf Facebook: https://bit.ly/464VA1H LinkedIn: https://bit.ly/4hH7Ri2 Website: https://bit.ly/4eLDbdU Merch: https://bit.ly/4aBpOM1 Newsletter: https://bit.ly/47ejrws Ask Gary: https://bit.ly/3PEAJuG Timestamps: 00:00 Intro 01:54 Scientific Studies on the Impact of Spermidine on Human Lifespans 02:14 What is Spermidine? 04:15 American Diets are Low in Spermidine-Rich Foods 05:50 Intake of Foods High in Spermidine 07:10 Spermidine as One of the Most Promising Anti-Aging Nutrients The Ultimate Human with Gary Brecka Podcast is for general informational purposes only and does not constitute the practice of medicine, nursing or other professional health care services, including the giving of medical advice, and no doctor/patient relationship is formed. The use of information on this podcast or materials linked from this podcast is at the user’s own risk. The Content of this podcast is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Users should not disregard or delay in obtaining medical advice for any medical condition they may have and should seek the assistance of their health care professionals for any such conditions. Learn more about your ad choices. Visit megaphone.fm/adchoices
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This nutrient might be the key to living longer without taking expensive supplements every single day.
The closest thing we have to a real-life anti-aging pill.
Today, we're unpacking one of the most fascinating and underappreciated compounds in nutrition.
Spermodyne.
People who ate more of this nutrient dramatically had lower death rates from all causes.
We'll explore the shocking research, the foods that contain it,
and how you can use this knowledge to potentially add years to your life.
Even though spermidine is naturally found in food,
We're both eating less of it, and our bodies are also making less of it.
Most people aren't getting nearly enough of it,
leaving us deficient in this crucial nutrient right when we need it the most.
So the exciting thing about spermidine is that...
This nutrient may be the most embarrassing name in science,
but it might be the key to living.
longer without taking expensive supplements every single day. Despite its awkward name,
researchers discovered that people who eat more of it dramatically outlive everyone else.
I'm Gary Brecker and you're listening to the Ultimate Human Podcast where we dig into the real
science of human performance, longevity, and disease prevention. Today we're unpacking one of the
most fascinating and underappreciated compounds in nutrition, spermidine. Another longevity claim
sounds too good to be true, but this one is backed by decades-long.
research. There's a 20-year study that followed almost 900 people and what they discovered
will blow your mind. People who ate more of this nutrient dramatically had lower death
rates from all causes. Today we're diving deep into spermidine, the nutrient that could be the
closest thing we have to a real-life anti-aging pill. We'll explore the shocking research,
the foods that contain it, and how you can use this knowledge to potentially add years to your
life. Stick around because by the end of this video, you'll know exactly what foods to eat to slow
down aging. Let me take you through the study. In the 1990s, a team in Europe wanted to find out
why people living in Italy had such long lifespans, and they thought it could be something in their
diet. To test this, they followed 829 people for 20 long years, tracking everything they ate
and how long they lived, meaning this wasn't just some quick study done in a lab with mice.
This was tracking real lifespan and real people. At the end of 20 years, the research looked at the
day that they collected and saw the nutrient most closely related to the lower death rates
was something called spermidine. And it was more than just slightly related. People who ate
ample amounts of spermidine had nearly 40% reduction in mortality. But to check this, the
scientists didn't look at one group of people alone. They tested their findings on another group
of 1770 people in a completely different study called the Sapphire cohort. The results,
Even after accounting for income, education, overall health, and other dietary factors,
spermidine still showed this incredible life-protecting effect.
Now, you might be wondering, what exactly is spermidine?
Don't let the name throw you off. It has nothing to do with sperm.
Spermidine is a polyamine, which means it's a kind of molecule found in every single one of your cells.
It's responsible for interacting with your DNA to help maintain its stability.
As we age, our spermodyne levels naturally drop, compromising the stability of our genetic material,
and that might be one of the reasons why we age in the first place.
The cellular waste and junk starts to pile up, and that's when we start seeing the signs of aging,
wrinkles, memory problems, heart issues, I mean, you name it.
Increasing the amount of available spermidine as you age helps prevent this.
Beyond stabilizing and protecting your DNA,
dramatically, spermidine also activates something called the Tor pathway.
When this pathway is working properly, your cells know when to grow, when to repair
themselves, and when to clean up. And all of that translates into faster healing and
slower aging. When this pathway is working properly, your cells know when to grow,
when to repair themselves, and when to clean up. And all of that translates into faster
healing and slower aging. Here's where we run into a problem. Even though spermodyne
is naturally found in food, most people aren't getting nearly enough of it.
The modern American diet, in particular, is pretty low in spermadine-rich foods.
We eat a lot of ultra-processed foods, refined grains, and miss out on the foods that actually
contain meaningful amounts of spermidine. Plus, as we age, our gut microbiome, which can
actually produce some spermidine for us, starts to decline. It's a double punch. We're both
eating less of it and our bodies are also making less of it, leaving us deficient in this crucial
nutrient right when we need it the most. Most people have never even heard of
spermadine, let alone know which foods contain it. And even if they did know, they
may not realize how much they need to eat in order to get the benefits shown in those
studies. The good news is that it's hiding in foods you probably already know about,
and some of them might be unexpected. Mushrooms are an excellent source, especially Shataki
mushrooms. Whole grains like germ, rice bran, and oats contain decent amounts too. Just remember,
to stay away from grains that are overly processed and contained folic acid.
Soybeans and green vegetables like broccoli and green beans also have spermidine.
The key is maintaining variety and focusing on whole unprocessed foods.
And since your gut bacteria actually produce spermidine,
feeding your gut microbiome with probiotics and prebiotic foods
may help boost your natural spermidine production.
One of the best ways to do this is increasing your intake of fermented foods,
especially kimchi and sauerkraut.
Now, you're probably wondering how much spermadine do you need to get these longevity benefits.
The people in the Brunek study who lived the longest were getting about 80 to 123 micromoles
per day from their food. That translates to roughly 12 to 18 milligrams per day. To put that in
perspective, you'd need to eat about a cup of cooked mushrooms or about two tablespoons of wheat germ
in order to get into that range. It's definitely doable with the right foods, but it does
require some intentional eating. The great news is that spermidine is highly bioavailable,
meaning your body absorbs up to 80% of what you eat. When you eat spermadine, it doesn't pass
right through you. So the exciting thing about spermadine is that it represents a new way of
thinking about aging. Instead of trying to treat disease after they develop, we're looking
at ways to prevent the aging process itself with nutrition. Scientists call spermadine a caloric
restriction my medic, because it gives you many of the benefits of eating less without actually
having to restrict your calories. And let's be honest, most people are not going to stick to a severe
caloric restriction diet for their entire lives. But adding spermine-rich foods to your diet,
that's something people can do. Right now, researchers are working on more human clinical trials
to nail down the optimal doses and confirm all these benefits we've seen in observational studies.
There are also companies working on spermidine supplements, though the jury's kind of still
out on whether pills are as effective as getting it from food.
Here's what we know for sure.
Spermidine is one of the most promising anti-aging nutrients we've discovered.
The human studies show real benefits, the biological mechanisms check out,
and it's found in foods that are generally healthy anyway.
Is it a magic bullet that will make you live forever?
Of course not.
But it might just be one of the most practical and evidence-based things you can do
to improve your chances of living a longer, healthier life.
The beauty of spermadine is that it's not asking you to do anything crazy.
You don't need to fast for days, you don't need to take expensive supplements or follow some complicated
protocol. These aren't obscure superfoods that cost a fortune. They're traditional foods that humans have
been eating for centuries. Maybe our ancestors knew something we're rediscovering. If you're someone who
loves learning about the science behind health and you want access to deeper dives like this,
but live, then I want to personally invite you to join my VIP community. Every single month,
I go live with our VIPs for an exclusive Q&A where you can ask me anything. No,
keepers, no fluff, just real answers backed by real data. And the best part, our VIPs get to submit
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get exclusive content, join the monthly calls, and help shape what we cover on this show,
click the link in the show notes below and join us. It's the best way to go from listener to insider.
We're not waiting for the next wonder drug or some miracle breakthrough. We're looking at what's
already in nature, what your body already recognizes, and giving you the
tools to take back control of your health. So here's my challenge for you. Try adding one
spermine-rich food to your diet this week. Maybe it's adding mushrooms to your pasta or trying
some wheat germ in your smoothie. These are small changes, but they might add up to big benefits
over time. You don't need a degree in molecular biology to apply this knowledge. You just need
the desire to show up for your body every single day. And that's just science.