The Larson Health Podcast

Imagine you could take an old, tired cell in your body and give it a memory jog — remind it exactly how to act young again. Not replace it. Not fake it. Just... remind it.

That is not science fiction. As of the summer of 2026, a real patient, in a real hospital, received a real shot of a therapy built to do exactly that. The patient was going blind from a disease called glaucoma. The scientist behind the therapy has spent thirty years working toward this single moment.

His name is Dr. David Sinclair. And today, we are going to walk through, in plain simple language, what he actually did, why the eye was the first place he tried it, why your brain might be next, and why some scientists are telling everyone to slow down and pump the brakes.

By the end of this episode, you'll be able to explain "reversing aging" to your grandma, your teenager, and your skeptical coworker — and you'll know the difference between real progress and hype.

Let's get into it.

Let's start really simple. Most of what we hear about aging is about slowing it down. Eat better. Sleep more. Take your vitamins. Walk every day. All of that can help you age a little slower, or a little healthier.

What Dr. Sinclair is working on is different. He is not trying to slow the clock down. He is trying to turn the clock backward. Take a cell that has become old and worn out, and make it young again — while it is still living inside your body.

Everyone tells you to “boost your metabolism.” You've probably heard it a thousand times — in ads, in wellness newsletters, from that one friend who just discovered cold plunges. But here's the thing: almost nobody explaining it can actually tell you what “metabolism” means at the level where it's really happening — inside your cells.

So today, we're going small. Really small. We're going down to the level of the tiny structures inside almost every cell in your body that decide how much energy you actually have. We're going to talk about mitochondria, a molecule called NAD+ that's become the darling of the longevity world, and  we're going to go through the actual published research. Who did the studies, how they were designed, whether they were peer reviewed, and most importantly, whether the results actually say what the supplement companies claim they say.

Some of what I share is going to hold up. Some of it is going to fall apart the second you read past the headline. Let's get into it.

Welcome back to  The Larson Health Podcast. If you're new here, this is the podcast where we take a functional health topic that's trending and actually dig into the science behind it — not the Instagram version, the actual peer-reviewed version. Today's topic: mitochondrial health and cellular metabolism, which is genuinely one of the most active and well-funded areas of biology research right now.

We've got three real studies to walk through today, from three different research teams, published in three different peer-reviewed journals. Grab a coffee, this one's a deep dive.

Let's start at the very beginning, because most of the confusion around this topic comes from people skipping this part.

Picture every cell in your body as a tiny house. Not one house — you have somewhere between 30 and 40 trillion of these little houses making up “you.” Every single one of those houses needs electricity to function. Lights on, appliances running, the whole thing. Where does that electricity come from? It comes from tiny power plants sitting inside almost every one of those houses. Those power plants are called mitochondria.

You eat a big bowl of pasta with a side of garlic bread. Ninety minutes later, you're standing in front of the fridge like you haven't eaten all day. Then, on a different day, you eat a smaller meal — some salmon, a pile of broccoli, half an avocado — and you're satisfied for five, six hours. Same amount of effort. Same feeling of 'I just ate.' Totally different outcome. Why? That's what we're digging into today: the actual biology of hunger. Why some foods switch it on within the hour, and others keep it quiet clear through to dinner. Once you see this mechanism, you'll start recognizing it in every meal you eat — and it changes how you build a plate. Welcome back to the show. Today's episode is called Hunger Pains — a look at the real, measurable biology behind why we get hungry when we do. We're going to talk about blood sugar, a couple of hormones you've probably heard of and a few you haven't, and why fiber, protein, and quality fats like avocado, extra virgin olive oil, nuts, and seeds are quietly some of the most powerful hunger-control tools you have.

Hormone Replacement Therapy (HRT) is a medical treatment used to replace hormones that naturally decline as women approach and go through menopause. For many women, this hormonal shift can lead to symptoms that affect physical health, emotional well-being, sleep, and overall quality of life. HRT can be an effective way to relieve these symptoms while also providing long-term health benefits for some women.

Could PCOS look completely different from one woman to another? Why do some women with PCOS conceive naturally while others struggle with infertility? Why do some experience severe symptoms while others barely notice them? In this episode, we explore why Polycystic Ovary Syndrome (PCOS) isn't a one-size-fits-all condition—and why understanding the spectrum of PCOS can change the way women approach their health and fertility.

Join us as we break down the science behind PCOS, explain why symptoms vary so widely, and discuss the latest understanding of this complex hormonal condition. Whether you've recently been diagnosed, have been living with PCOS for years, or simply want to better understand women's hormonal health, this conversation provides practical insights and evidence-based information.

🌿 Are the supplements you're taking actually helping you age better—or just draining your wallet?

In this educational solo episode, Kim Larson breaks down the latest research on supplements for aging and reveals what science says about some of the most popular products on the market. From vitamin D and calcium for bone health to glucosamine, collagen, fish oil, multivitamins, and nootropics, Kim explores what truly works, what doesn't, and why building a strong foundation through nutrition and movement matters more than any pill.

If you've ever wondered whether your supplements are worth the investment, this evidence-based conversation will help you make smarter decisions about supporting your health, longevity, and quality of life.

✔️ The newest findings on calcium and vitamin D for maintaining bone health
✔️ Why glucosamine may have surprising benefits beyond joint support
✔️ The concerns surrounding nootropics and tyrosine supplementation
✔️ What studies reveal about multivitamins and longevity
✔️ Why fish oil supplements often don't provide the same benefits as eating fish
✔️ The growing evidence supporting collagen for skin and joint health
✔️ How food, exercise, and lifestyle habits remain the most powerful tools for healthy aging

⏱️ Timestamps

00:00 – Introduction to Supplements and Health
02:26 – The Truth About Calcium and Vitamin D
10:36 – Glucosamine: A Surprising Revelation
16:08 – Nootropics and Tyrosine Concerns
21:51 – Multivitamins and Fish Oil: Are They Worth It?
29:00 – Collagen: The One Supplement That Works
34:54 – Conclusion: Building a Foundation for Health

🔗 Resources Mentioned

• Larson Botanicals
• LarsonNutrition.com
• Supco App

💬 Sound Bites

"Multivitamins don't extend life for healthy adults."

"Fish oil capsules often don't deliver the benefits of fish."

"Ask if there's real evidence before buying a supplement."

👍 If you found this episode helpful, be sure to like, subscribe, and share it with someone looking to make informed choices about supplements and healthy aging.

The decline in male fertility isn’t just a personal health issue—it’s a biological alarm bell for our entire species. Most of us are unaware that sperm counts have plummeted over 50% in just two generations, and testosterone levels are following a similar unsettling trajectory. It’s not about individual choices alone; this is a systemic crisis driven by environmental toxins, metabolic disruption, and lifestyle shifts that threaten our reproductive resilience—and potentially, our future as a reproductive species.

In this eye-opening episode, you’ll discover the startling data behind this decline, including the landmark 2017 meta-analysis by Dr. Shanna Swan, which compiled 185 studies across four decades. You’ll see how widespread environmental chemicals like BPA, phthalates, glyphosate, and PFAS are sabotaging hormone signaling, damaging sperm DNA, and impairing mitochondrial function—fundamental processes for fertility. Plus, we break down how systemic inflammation, insulin resistance, and oxidative stress form a vicious cycle that weakens both male and female reproductive health at their core.

We delve into actionable insights you can implement today: how resistance training, nutrient optimization with zinc, selenium, and omega-3s, plus reducing exposure to plastics and endocrine disruptors, can reverse or slow this decline. You’ll understand why sleep quality, circadian rhythms, and reducing chronic stress are critical levers for maintaining testosterone and sperm quality. This isn’t just theory—clinical trials show measurable improvements in semen parameters within just a few weeks of lifestyle adjustments.

The stakes are high. Falling fertility rates, rising chronic disease, and shifting demographics aren’t just societal trends—they’re biological signals of systemic imbalance we’ve overlooked for too long. But the good news is, you have power over your health and future generations. Restoring reproductive resilience isn’t about guesswork—it’s about strategic, science-backed interventions that renew our biological capacity, one cycle at a time.

Perfect for anyone concerned about fertility, hormonal health, or simply wanting to understand how modern life impacts our biology. This episode equips you with the insight to take control—because when we restore systemic health, fertility and vitality follow. Don’t wait for the crisis—be part of the solution today.

Join Kim Larson on the Larson Health Podcast as she delves into the critical issues of endocrine disruptors and their impact on testosterone levels and overall health. Discover how everyday chemical exposures, metabolic dysfunction, and lifestyle factors contribute to hormonal imbalances. Learn practical strategies to reduce these exposures and improve your health through nutrition, lifestyle changes, and non-toxic products. Tune in for insights on protecting your family's health across generations.

How to Protect the Brain, Heart, and Metabolism

Your brain, heart, and metabolism are deeply connected — and protecting them is the key to longevity, clarity, and vibrant energy.

In this episode, we break down the science and the practical habits that support cognitive health, cardiovascular strength, and metabolic balance. From daily nutrition shifts to stress regulation, movement, sleep optimization, and inflammation control — you’ll learn how small, consistent choices compound into powerful long-term protection.

We discuss:
• The connection between brain fog, heart health, and insulin resistance
• Why metabolic dysfunction is at the root of many chronic diseases
• The role of inflammation in aging
• Foods and lifestyle habits that protect your cells
• How stress impacts your heart and cognition
• Simple, sustainable strategies to future-proof your health

If you care about longevity, mental clarity, and aging well, this episode gives you actionable tools you can start using today.

Your future self will thank you.

There are some who think that water fasting is a new trend that modernist came up with but that is not true. We all agree that water is important to our body but how much ? Yes, there is a certain amount that can be dangerous to the body. This episode is knowledge packed and answers the question " What percentage of water do we need as humans ?"