Best Undoctored Podcasts (2025)

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What happens when you deprive yourself of blue light? 28:39

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1h ago28:39

28:39

Science journalist Lynn Peeples did something extraordinary: She spent 10 days in a nuclear bunker exposed only to dim red light but no blue or other visible wavelength of light. She also rid the space of all clocks or other time-indicating devices and even avoided having any human contact. What she learned opened up numerous questions on how to be…

1
Why are you no longer hungry? 12:50

7d ago12:50

12:50

People who were previously ravenously hungry, struggling to be satisfied and tending to overeat, can find themselves miraculously back in control of appetite just by adopting a number of basic dietary strategies that begin with elimination of gliadin-derived opioid peptides that come from the partial digestion of wheat and grains. Add a handful of …

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There's a 50:50 chance that you have this epidemic condition 18:02

15d ago18:02

18:02

There is a non-infectious epidemic occurring right beneath our noses. The likelihood that you are affected is around 50%. It's the epidemic of small intestinal bacterial overgrowth, or SIBO. In this episode of Defiant Health, I run through the rationale that reveals that, even conservatively estimated, more than 100 million Americans have this cond…

1
Here's a microbe you should know about: Bacillus subtilis 10:28

22d ago10:28

10:28

My original recipe for SIBO Yogurt included three microbes chosen for their ability to colonize or germinate in the small intestine and produce bacteriocins, natural peptide antibiotics effective in killing the species of SIBO. The original formulation therefore specified L. reuteri, L. gasseri, and B. coagulans. However, B. coagulans proved to be …

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Yogurt That's Not Yogurt: My Accidental Sleep Cure 18:59

27d ago18:59

18:59

I’ve personally struggled with insomnia for years, unable to sleep more than a few hours at a time, experiencing frequent awakenings, sometimes awakening at 3 or 4 in the morning and unable to get back to sleep. And I tried almost everything short of prescription sedatives: tryptophan, 5-HTP, megadose melatonin, GABA, theanine, the antihistamine di…

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Misplaced blame 17:35

28d ago17:35

17:35

You’re walking down the street, minding your own business, just out to run some errands. You’re wearing a black jacket, running shoes, a baseball cap. You pass the doors of a bank. Suddenly, the bank’s doors fly open and a man runs out, a man wearing a black jacket and a baseball cap. You see him running at top speed, disappearing around a corner. …

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Microbiome Madness 14:46

1M ago14:46

14:46

It’s truly an exciting time. The information and science surrounding the microbiome is exploding. It seems that a day doesn’t pass without some new, interesting insight emerges on microbiome questions, providing us with unprecedented insights and strategies to get better control over health, weight management, aging, etc. Look at what we are accomp…

1
What was this Wheat Belly thing all about? 15:14

2M ago15:14

15:14

When the first Wheat Belly book was released in 2011, it quickly leapt to centerstage, gaining a huge worldwide following. Millions of copies of the book were sold in 37 countries, the conversation was featured in major media from network news to Dr. Oz to . I don’t believe that this was due to my personal charm or charisma, but because it worked: …

1
10 things you may not know about your CT heart scan and coronary calcium score 21:25

2M ago21:25

21:25

While CT heart scans are becoming increasingly popular to generate a coronary calcium score as a gauge of coronary atherosclerotic plaque and thereby risk for heart attack, there is actually a treasure trove of other useful information provided by the scan—but often not reported to you. In this episode of the Defiant Health podcast, I therefore hel…

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How to use inulin to map the location of microbes in your GI tract 18:46

3M ago18:46

18:46

Inulin is a common fiber, the fiber found in root vegetables like onions, garlic, shallots, asparagus, jicama and many other foods. Humans lack the digestive enzymes, however, for metabolizing inulin, but microbes living in your gastrointestinal track are able to metabolize it. When beneficial microbes metabolize inulin, they convert it to fatty ac…

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The Guardrails of Diet 20:01

3M ago20:01

20:01

Here are what I call "The Guardrails of Diet,' i.e.., metabolic markers that tell you whether your diet is genuinely healthy or not. Too many people put too much stock in either a single marker like blood glucose, or the wrong marker like LDL cholesterol that takes you down the path of health disruptions: weight gain, visceral fat expansion, protei…

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Managing high blood pressure without drugs 22:39

3M ago22:39

22:39

Conventional healthcare and dietary advice are, unfortunately, virtually useless in providing effective strategies on how to manage blood pressure naturally and nutritionally. They have, for instance, the DASH diet that can reduce systolic and diastolic blood pressure by a few millimeters but not more. They provide bland advice like lose weight or …

1
Ten Unexpected Signs of SIBO 18:28

3M ago18:28

18:28

Small intestinal bacterial overgrowth, or SIBO, is now rampant, a virtual nationwide epidemic, a condition now carried by around 50% of the population. If you have food intolerances, fibromyalgia, restless leg syndrome, are overweight or obese, have irritable bowel syndrome, an autoimmune condition, atrial fibrillation or numerous other common cond…

1
The Lies Being Spread About Sourdough Bread 11:43

4M ago11:43

11:43

Bakers, breadlovers, even purported health information authorities such as the Mayo Clinic all spread the claim that all the problems associated with consumption of foods made of wheat are eliminated or significantly reduced by sourdough fermentation. Is this true? In this episode of the Defiant Health podcast, Let’s take each of those claims made,…

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Hyaluronic acid: Most important DIETARY fiber of all? 14:20

4M ago14:20

14:20

We’ve been urged to include plenty of dietary fiber in our daily routines, fibers that come from vegetables, legumes, grains and other plant sources. But there is an animal-sourced fiber that has nearly disappeared from the modern human diet: hyaluronic acid. Hyluronic acid has nearly disappeared from the diet because it is primarily sourced from a…

1
The REAL way to stop or reverse heart disease 29:41

5M ago29:41

29:41

LDL cholesterol, apoprotein B, saturated fat, TMAO, statin cholesterol drugs: Over the last 40 years, we have been inundated with misguided advice on how to reduce your risk for coronary heart disease, i.e., risk for such things as heart attack, need for heart procedures such as stent implantation or bypass surgery, or sudden cardiac death, serious…

1
Will eating yogurt change your life? 16:49

6M ago16:49

16:49

Go to any supermarket and you will see the impressive variety of products in the dairy aisle labeled "yogurt." You have a mindboggling collection of choices: non-fat, low-fat, full-fat, flavored, unflavored. Single-serve cartons, quart containers, squeezable tubes, jars. Will consuming any of these products change your life in any significant way? …

1
Cold Water Immersion: Cardiac Russian Roulette 18:26

6M ago18:26

18:26

The practice of immersing your body in ice water is growing in popularity based on claims of improved mood and well-being, muscle recovery after exercise, even longevity. But this ignores the well-established fact that sudden cardiac death is a real risk due to coronary spasm, causing heart attack, and unstable heart rhythms due to a situation call…

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Why Cutting Calories is Dangerous 23:52

6M ago23:52

23:52

Over 50% of Americans are, at any one time, trying to lose weight. So it’s understandable that the GLP-1 agonist drugs like Ozempic and Mounjaro have become so popular, given their spectacular upfront results. Others have used reduced calorie diets in their various forms: counting points, assigning foods red, yellow, or green lights, meal replaceme…

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Dr. Eric Westman on the Power of Limiting Carbohydrates to Reverse Type 2 Diabetes; Cholesterol is not a disease 1:02:28

7M ago1:02:28

1:02:28

I first met Dr. Eric Westman at a low-carbohydrate meeting a number of years ago where he discussed an extremely important and insightful human clinical trial he had conducted in which he counseled participants with type 2 diabetes to follow a very low-carbohydrate, essentially ketogenic, diet. He was almost prohibited from conducted the study beca…

1
Are health coaches the future of healthcare? 40:51

8M ago40:51

40:51

We all recognize that American healthcare is a badly broken system. Wildly overpriced, exploitative, with a focus on pharmaceuticals and medical procedures to the exclusion of basic issues such as nutrition, the role of nutrients, and the microbiome. Can we expect doctors, healthcare executives, pharma or medical device executives to find better so…

1
Is blue light damaging your eyesight? 24:58

8M ago24:58

24:58

Over the past decade, most of us have converted our home lighting to light-emitting diode (LED) bulbs, as they save a significant amount of energy, requiring 75-90% less energy than older incandescent lights. Personally, I converted the 50 or lightbulbs in my house to nearly all LEDs. Most current LEDs emit, of course, visible light. But they also …

1
Managing Endotoxemia: Key to SO Many Aspects of Health 41:29

9M ago41:29

41:29

I’ve touched on the topic of endotoxemia in past episodes of the Defiant Health podcast. In this episode, let’s dive deeper into this topic that is absolutely crucial to understanding and managing SO many aspects of health, from subduing anxiety and panic, to depressive, to joint pain and skin rashes, to gastrointestinal conditions, even weight man…

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Why managing skin pH is crucial for skin health and appearance 21:47

10M ago21:47

21:47

I’ve been showing thousands of people how to restore this microbe lost by the majority of modern people, Lactobacillus reuteri. But, of all the spectacular improvements in health we can gain by managing our microbiomes, such as an increase in empathy and generosity, reduction in anxiety and depression, deeper sleep, increased libido, restored youth…

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The curious phenomenon of bacterial translocation that is key to so many health conditions 24:13

10M ago24:13

24:13

I’ve spent some time reflecting back on all my years practicing in hospitals, often not sleeping for extended periods, sometimes days, covering hospitals floors and ICUs, resuscitating people who experienced cardiac arrests, taking them to the cath lab to open arteries, but also witnessing people with all sorts of other health conditions: cancers, …

1
Seven Reasons to NEVER Eat Wheat Again 25:40

10M ago25:40

25:40

Those of you who follow my discussions that started with the Wheat Belly series of books already know that there is a long list of reasons why humans made an enormous blunder when we first resorted to the consumption of the seeds of grasses, meaning wheat and related grains. We know this from the anthropological record of human disease, we know thi…

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The myth of “optimal medical therapy” 25:26

11M ago25:26

25:26

Over 30 years ago, I help set up the first CT heart scan device in Wisconsin, one of the first in the entire midwest. This was so long ago that it was really an electron beam tomogrraphy, or EBT, device that predated the more recently developed CT devices. The point is that these devices acquired images quickly, about 1/10th of a second. This is im…

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Unlocking Wellness: Reed Davis on Environmental Toxins and Holistic Health Solutions 36:35

11M ago36:35

36:35

“Everyone coming in the door were sick and had already been to 8 or 10 healthcare practitioners and weren’t better yet. This is all wrong.” “It’s not just what you eat. It’s the air you breathe and the water you drink, the personal care products you use, household cleaning products. . .” Here is a conversation I had recently with with Reed Davis, a…

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Omega-3 Fatty Acids: Facts and Controversies 21:53

11M ago21:53

21:53

Over the last 30 years, the question over whether omega-3 fatty acids from fish has been the subject of controversy, swinging from exuberance over its potential benefits to skepticism over whether they provide any benefit at all. It seems that one day we hear that fish oil reduces risk for heart attack, while the next day we hear that there is no s…

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How NOT to have atrial fibrillation 28:21

12M ago28:21

28:21

Atrial fibrillation, or A fib for short, is the most common heart rhythm issue that plagues people. About 30% of people will experience this rhythm disorder at some time in their lives, an issue that becomes more and more likely as we age. The rhythm is typically experienced as the sudden onset of breathlessness and lightheadedness, and sometimes c…

1
The Powerful Influence of the GI Microbiome on Sleep 21:53

1y ago21:53

21:53

Sleep issues represent a major struggle for millions of people: too little sleep, trouble falling asleep, trouble staying asleep, early morning awakenings followed by difficulty falling back asleep. Some people complain that, despite having a full night of sleep, they awake feeling like they didn’t sleep at all, struggling with sleepiness, fog, and…

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The GLP-1 Agonist Weight Loss Disaster 25:45

1y ago25:45

25:45

You’ve likely heard the headlines gushing about the weight loss effects of the GLP-1 agonist class of drugs, agents that go by names like Wegovy, Mounjaro, Rebelsus and others. Doctors are declaring these drugs as breakthroughs or even magical, witnessing the rapid and dramatic weight loss they can achieve. People appear willing to accept the side-…

1
How much of your personal health begins in the mouth? 28:02

1y ago28:02

28:02

The oral microbiome is second only to the colon in the density of microbes living there. The mouth is really a collection of varied ecosystems that differ in composition. For instance, the microbiome of the teeth is different from that of the tongue that is, in turn, different from the microbiome of the gumline. The oral cavity is therefore teeming…

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Common Myths and Misconceptions About Wheat 28:10

1y ago28:10

28:10

Despite having written 7 books in the Wheat Belly series pointing out the harms that this “food” has inflicted on people, harms that doctors nearly always misdiagnose as an opportunity to “treat” with pharmaceuticals and procedures, questions and ideas to the contrary continue to crop up. Some of these ideas are simply due to the barrage of adverti…

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The Finer Points of Vitamin D Supplementation 23:07

1y ago23:07

23:07

Achieving an optimal level of vitamin D provides numerous health advantages, from relief from winter blues to reduction in cardiovascular risk to reduced risk for several forms of cancer. It’s one of the most important nutrients to get right, i.e., achieve an ideal blood level of the primary blood marker for vitamin D, 25-OH vitamin D. But, even af…

1
Skin Health from Within: Nutrients, Modern Diets, and the Gut-Skin Axis 31:17

1y ago31:17

31:17

In this episode of the Defiant Health podcast, I bring together a number of strategies I’ve discussed piecemeal in past that have enormous potential to improve skin: reduce wrinkle depth, increase dermal collagen, increase dermal moisture, accelerate healing, reduce existing sun damage and prevent future sun damage. Recall that we don’t achieve thi…

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“The Dark Dirty World of Sugar”: An interview with Joyce Laszloffy 49:15

1+ y ago49:15

49:15

In this episode of the Defiant Health podcast, I interview Joyce Laszloffy who personally struggled with a crippling sugar addiction and overweight for many years. She experienced extreme ups and downs, trying to overcome the powerful pull that sugary foods can have on us. She shares how, for years, she managed to hide her addiction from her family…

1
Decoding Emotional Eating: My Interview with Life Coach Molly Zemeck 33:24

1+ y ago33:24

33:24

In this episode of the Defiant Health podcast, I interview life coach, Molly Zemek. Molly comes from the unique background of having worked as a Le Cordon Bleu formally-trained French chef for 10 years. She is also a certified sommelier. But, with this intensive background in food and wine, she found herself falling victim to uncontrolled eating an…

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Nootropics vs Neurotrophics: Know the difference for preservation of brain health 26:19

1+ y ago26:19

26:19

You have likely heard the headlines: cognitive impairment and Alzheimer’s and other forms of dementia are on the rise. Part of the increase is due to an aging population. But there are reasons that are adding to the increase beyond this. The epidemics of insulin resistance (recall that dementia is often labeled “type 3 diabetes,” meaning that the b…

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The Microbiome and Skin: My Interview with Microbiologist Kiran Krishnan, PhD 57:11

1+ y ago57:11

57:11

In this episode of the Defiant Health podcast, I have a special guest: microbiologist Kiran Krishnan, PhD. In addition to conducting research on microbiome and health issues, Dr. Krishnan also built a successful company called Microbiome Labs, a major provider of unique probiotic products. Dr. Krishnan has gained an international reputation for inn…

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The Microbiome-Cancer Connection 22:06

1+ y ago22:06

22:06

Cancer is, of course, something we all fear, a collection of diseases that strike us down unexpectedly and often put us at the mercy of a deeply flawed and exploitative medical system. So it can help to identify the factors that leads us down this path and take action to minimize such risks. We don’t smoke cigarettes, we try to consume organic food…

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Potpourri: Hyaluronic acid, allulose, L. reuteri and reproductive health 28:23

1+ y ago28:23

28:23

There are a great many emerging ideas to discuss, but sometimes these topics are just not big enough to fill out an entire podcast episode. So I decided to start something I call “Potpourri,” a collection of unconnected but interesting topics that may be helpful in guiding you in your health journey. I’d like to say “Ask your doctor about these iss…

1
My recent antibiotic experience 25:37

1+ y ago25:37

25:37

I recently had an experience in which I had to take an antibiotic. Those of you who have been following my Defiant Health podcast discussions, or have been reading my thousands of blog posts on DrDavisInfiniteHealth.com, or my books, especially my latest Super Gut book, know that I advocate for absolutely minimizing our reliance on antibiotics, as …

1
How to Stop "Treating" Health Conditions 31:24

1+ y ago31:24

31:24

It’s a concept that many people struggle to embrace or understand. But once you ‘get” it, a lot of issues in health will become clearer and you can save yourself a considerable amount of time, effort, and money. The idea is to get away from the idea of “treating” health conditions. This is the approach used in pharmaceuticals and employed by most d…

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A conversation with JJ Flizanes: Identifying your obstacles to success in weight loss, health, money, career, and relationships 57:48

1+ y ago57:48

57:48

A former actress and long-time personal fitness coach, JJ Flizanes has focused these last few years on helping people identify the reasons that they often fall short of their goals, goals such as weight loss, enjoying successful relationships, success at work, or just finding happiness. Through her several popular podcasts that include Fit 2 Love a…

1
Infertility, miscarriages, brain fog and environmental toxins: My conversation with Dr. Tom O’Bryan 41:51

1+ y ago41:51

41:51

In this episode of Defiant Health, Dr. Tom O’Bryan discusses his unique approach to managing environmental toxins that now flood our lives, toxins that increase our risk for numerous health struggles including cognitive impairment, autoimmune diseases, and cancers. Dr. O’Bryan brings his considerable experience in educating and investigating the ef…

1
The Perils of Carb Loading and the Power of Fat Adaptation for Athletic Excellence 19:54

1+ y ago19:54

19:54

You likely know people who engage in strenuous exercise—a marathon, triathlon, long-distance biking, even just day-to-day exercise—or perhaps you do so yourself. In anticipation of the need for a great deal of energy to engage in such an effort and to increase endurance and performance, many people follow a practice called carb loading. While there…

1
Why I take no prescription medications 21:44

1+ y ago21:44

21:44

Personally, I take no prescription medications. I do not take a statin drug to reduce cholesterol, nor baby aspirin. I take nothing for high blood pressure, acid reflux, or irritable bowel syndrome. I take nothing for headaches, pain, or sleep—not a single prescription medication. Yet my blood pressure is typically around 108/72. My triglycerides a…

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SIBO: The Great Masquerader 28:57

2y ago28:57

28:57

If you have been following my discussions in this Defiant Health podcast or in my blog, DrDavisInfiniteHealth.com, or my Super Gut book, you know that I have been arguing that there is an epidemic of SIBO going on in the U.S., an epidemic involving every 1 in 2 people. It is an epidemic responsible for an astounding amount of health struggles. The …

1
The Little Known Secrets of Slowing Aging by Reducing Glycation 19:10

2y ago19:10

19:10

There are a handful of strategies that you can engage that slow the phenomena of aging, i.e., slow or stop the development of skin thinning and development of wrinkles, deterioration of joint health, so-called hardening of the arteries or atherosclerosis, reduction in hormonal status, loss of muscle, loss of bone density, etc. One issue that is rar…