Primal Edge Review: A Bison Organ Supplement Scam Worth Avoiding
My research uncovered AI-generated images, products shipped from China, unknown capsule contents, and a label that contradicts the marketing claims…
Michael Kummer
Why I Still Take Digestive Enzymes Years After Healing My Gut
If you’ve gone carnivore to heal your gut and suddenly feel worse instead of better, the meat you’re consuming typically isn’t the problem. Your stomach acid, bile and enzymes simply haven’t scaled up to the new workload yet, and supplemental enzymes are the easiest way to take a load off your gut while it catches … Read more
Primal Queen Review: Low Dose, Misleading Marketing
In this article: Overview of my key findingsHow much organ meat is actually in a Primal Queen capsule?The “Proprietary Blend” problemConcerns about Primal Queen’s processing methodCost per gram (and cost compared to other products)Misleading “research study” resultsImportant heavy metal findingsMisleading marketing claimsHow to choose a better supplementFinal verdict Primal Queen shows up in my inbox … Read more
Sunlighten Review: Amplify Is The Hottest IR Sauna I’ve Tested
The Amplify reached 171 degrees during testing, making it the hottest full-spectrum infrared sauna I’ve ever used. Here’s everything you need to know about its installation requirements and features, as well as how it compares to Sunlighten’s flagship mPulse Smart Sauna.
Why I Supplement With Magnesium (Even on an Animal-Based Diet)
On a typical day I get roughly 470 mg of magnesium from food, which clears the RDA but falls well short of the 600 to 800 mg humans likely consumed for most of our evolutionary history. That gap matters because standard blood work won’t catch a deficiency, and the downstream risks are well-documented.
Nordic Wave Cold Plunge Review: Viking Premier vs. Hybrid vs. XL (Plus the Pro Chiller)
In this article… What all three Nordic Wave cold plunges have in commonMy take on the Gen 2 Pro chillerViking Premier reviewViking Hybrid reviewViking XL reviewSide-by-side comparison tableWho should buy whichHow Nordic Wave compares to other cold plunge brandsWhere to buy (and discount code)Summary and final verdict Nordic Wave recently sent me three of their … Read more
Beef vs. Chicken on an Animal-Based Diet
Beef provides more micronutrients, a better fatty acid profile, and a more balanced amino acid composition than chicken. Here’s what the data actually shows — and why it matters for long-term health.
The 9 Best Infrared Saunas
The best infrared saunas have heaters with 90% and higher emissivity, and choosing one with visible red light can deliver additional health benefits. Here’s a list of our top picks based on testing and first-hand experience.
Beef Protein Powder vs Whey Protein Powder
In this article… Key Differences Between Beef and Whey ProteinAmino Acid Profile and Protein QualityDigestibility and ToleranceTaste, Texture and MixabilityUse Cases and How to ChooseBeef and Whey vs. Plant-Based ProteinSummary and Final Verdict I’ve been leveraging protein powders to boost my daily protein intake since I was a professional track and field athlete in my … Read more
SaunaSpace FireLight SuperSauna Review
The FireLight sauna delivers all the benefits of a full-spectrum infrared sauna, plus red light therapy benefits without needing a separate panel. Best of all, it heats up instantly and sessions take just 20 minutes.
Hydrosnooze Bed Cooling System Review
Hydrosnooze isn’t the most tech-forward bed cooling system on the market, and it struggled to keep me cool through the night. But if you’re not a super-hot sleeper, it offers decent cooling capability at a relatively low price point — and it’s the best option if you’re looking for a system that doesn’t require an … Read more
WHOOP vs Ultrahuman: Which Is the Better Fitness and Sleep Tracker?
Both WHOOP 5 and Ultrahuman deliver advanced insights into sleep, recovery and daily performance. Which one you should get primarily depends on the type of workouts you do and your form factor preferences.
The 4 Best Bison Organ Supplements
When choosing a bison organ supplement, focus on brands that harvest organs from regeneratively-raised animals and which use a rigorous third-party testing program. And be aware that prioritizing purely grass-fed bison isn’t as important as it is with beef organ supplements.
Ultrahuman Home Review
Ultrahuman Home is a small device that tracks indoor air quality, temperature, humidity, light and noise levels to help you improve your living environment and long-term health. Kathy and I began taking steps to improve the air quality in our home several years ago, after an air quality assessment revealed elevated levels of small particles … Read more
Wood Stove vs. Electric: What’s the Best Heater For Your Sauna?
There’s no denying that electric sauna heaters are more convenient than wood-burning stoves. But that convenience comes at the cost of a higher initial investment, slower heat-up, and (in my opinion) a less appealing overall sauna experience.
Muse S Athena Review
Muse S Athena is a brain-sensing headband that gives you real-time biofeedback on your brain activity during meditation sessions. It’s also an accurate sleep tracker, thanks to a built-in EEG. In this review, I share how I’ve used Muse for meditation, and how the wearable compares to other sleep trackers I’ve tried.
Somnee Review: My Results After 49 Nights
Somnee maps your brain and delivers gentle (safe) electrical stimulation aimed at helping you fall (and stay) asleep. I saw slight improvements in my sleep data during testing, but I suspect it will work even better for people who struggle to consistently get enough high-quality sleep.
How I Increased My HRV From 59 to 77 ms — And Why It Went Back Down
HRV is a highly personal metric that depends on several factors, including genetics and lifestyle. But I’m convinced that the closer you get your body to its natural state (based on millions of years of human evolution), the more likely it will be to function optimally — and your HRV will reflect that.
Best Cold Plunge Tubs (Ranked By a Daily Plunger)
I own multiple cold plunge tubs and have tested even more. These are my top picks for a range of use cases, based on my first-hand experience, their cooling performance, and other key factors.
ReGen Blast Cold Plunge Review
In this article: Delivery, Unboxing and SetupChiller PerformanceAesthetics and ErgonomicsFiltration, Sanitation and MaintenancePrice, Value and Discount CodeSummary and Final Verdict If you’ve been shopping for a new cold plunge tub, you may have noticed the overwhelming number of options available. You may also have noticed that many tubs and chillers look strikingly similar and often … Read more
Carnivore Bar Review
In this article: Key facts about Carnivore BarIngredients and nutritional analysisMy team’s review of the taste and textureHow I leverage Carnivore BarsHow they compare to other productsCost and discount codeFinal verdict A couple of years ago, I stumbled across Carnivore Bar, which is essentially a pressed cake made of pounded dried meat (from grass-fed and … Read more
Bison Meat vs Beef: Surprising Facts About Which Is Healthier
In this article: Bison vs Beef Nutrient ComparisonMacronutrientsMicronutrientsOur lab testing resultsBison’s benefits and downsidesGrass-Fed vs. Grass-Finished vs. Grain-FinishedFinal Verdict and Key Takeaways At the Kummer household, we consume more than 600 pounds of beef per year. It’s relatively cheap, easy to get, and undoubtedly nutritious. But if you’ve ever seen bison meat at a farmer’s … Read more
Infrared vs Traditional Saunas
Research shows that infrared and traditional saunas offer similar benefits, but there are a few key differences when it comes to pain relief, as well as skin and respiratory health. Plus, there are important cost and experience factors to consider.
What to Eat Before and After a CrossFit Workout
For most people, what you eat matters more than when you eat. But keeping a few key facts in mind can help you maximize your workout benefits.
How Ketones Affect Exercise Performance and Recovery
Scientific research has shown that supplementing with ketone monoesters can improve athletic performance and speed up recovery. However, these effects appear to be highly context-dependent.Â
OneSkin Review (With Before and After Pics)
Using OneSkin for just over a month noticeably improved my skin’s appearance, making it smoother, softening my fine lines, and reducing my number and intensity of age spots.
The 5 Best Sleep Trackers
A look behind the technologies used in the best sleep trackers and the reasons why most sleep monitors can’t accurately detect when you’re sleeping.
The Best Bed Cooling Systems: Eight Sleep vs. Chilipad, BedFan
Water-based bed cooling systems like Eight Sleep provide precise temperature control and can adapt to your body’s needs throughout the night, while bed fans serve as a simpler, cheaper and less-effective solution by circulating air under your sheets.
Why Red Meat Isn’t Bad For Your Health
Here’s the science behind why consuming high-quality red meat from responsibly-raised animals is actually good for your health and doesn’t cause cancer, clogged arteries or heart disease.
Pulsetto Used Fake Research to Promote Its VNS Device (Review)
Pulsetto used a plagiarized academic study with false information to promote its stress relief product, including a doctored diagram and a fake statement about having funded the research. It also had no effect on my biometrics (or how I felt) during testing.
