Heart Doc VIP with Dr. Joel Kahn

This week, Dr. Kahn dives into four new research papers on omega-3 fatty acids and their impact on heart and brain health. The discussion highlights several eye-opening findings, including reduced atrial fibrillation risk and improved cardiovascular outcomes in patients undergoing hemodialysis. Dr. Kahn also explains how omega-3 intake supports brain health and why the "right" dose depends on the specific condition being addressed. Food sources, fish oil, algae-based supplements, and ahiflower are compared as practical ways to reach optimal omega-3 levels. 
Additional topics in this episode include newly approved AI software for early detection of heart disease, the role of statins in patients with type 2 diabetes, the science—and hype—around NAD+ boosters, and emerging data on Prolon fasting for Crohn's disease. Dr. Kahn also reviews concerning research on heart rhythm risks associated with high-intensity endurance exercise in athletes over the age of 50.
As always, the episode blends cutting-edge research with real-world clinical insight to help clarify what actually matters for long-term heart health.
Thanks to The Fresh Pressed Olive Oil Club — get a bottle for $1 at getfreshDRKAHN.com. 
More About This Episode
This episode takes a deeper look at why omega-3 blood levels matter more than simply taking a supplement. Dr. Kahn reviews large population studies linking higher omega-3 levels to lower risks of atrial fibrillation, early-onset dementia, and major cardiovascular events, including in high-risk groups such as patients on hemodialysis. The key takeaway: testing omega-3 status and personalizing intake may be far more effective than a one-size-fits-all approach. 
Beyond omega-3s, Dr. Kahn explores several timely and surprising topics, including AI-enhanced CT scan technology designed to detect silent heart disease without additional radiation, real-world data on statin benefits in patients with type 2 diabetes, and why costly NAD+ supplements may ultimately function as a form of vitamin B3. The episode also examines new evidence on fasting-mimicking diets for Crohn's disease and potential heart rhythm risks in high-level endurance athletes over 50.
Throughout the discussion, Dr. Kahn emphasizes practical, evidence-based steps patients can review with their physicians, including omega-3 blood testing, coronary calcium scoring, and tailoring lifestyle and supplement strategies to individual risk factors.

This week, Dr. Kahn breaks down the newly released USDA 2025–2030 Dietary Guidelines and the surprising upside-down food pyramid they present. He explains how the final report differs from last year's Advisory Committee recommendations, including changes in committee membership and the influence of advisors with financial ties to the meat and dairy industries. Looking back at the original 1980 dietary guidelines, Dr. Kahn asks an important question: how much has really changed? His takeaway remains refreshingly simple—eat food, mostly plants, not too much.
Short topics this week include urinary measurements of protein intake, optimal timing for surgery in dilated aortic roots, the cardiovascular risk of lipoprotein(a), and whether the science behind the Blue Zones truly holds up.
You can order a bottle of olive oil for just $1 at getfreshDRKAHN.com.
To join the next group ProLon fast, order your kit as soon as possible at prolonlife.com/DRKAHN.
If you want it a touch shorter or more punchy for Apple Podcasts specifically, I can trim it another 10–15%.

Dr. Kahn kicks off 2026 by reviewing recent media reports on aspirin use and dosing for the prevention of cardiovascular events in the President of the United States. Much of the coverage overlooks an important factor: the relationship between aspirin dose and body weight. Dr. Kahn examines data from multiple studies suggesting that, in some cases, only higher-dose aspirin was effective in preventing cardiovascular events. As always, listeners are encouraged to discuss aspirin use and dosing with their own medical team.
Additional topics this week include the health impact of carryout meals, kidney function and cystatin C, statin use in patients with diabetes, the risks associated with tramadol, cold drink–induced atrial fibrillation, and recent health reports involving Chevy Chase and Jelly Roll.
Dr. Kahn also invites listeners to join an upcoming group 5-day PROLON Fasting Mimicking Diet, supported by dietitians and health educators. Order your PROLON kit now at prolonlife.com/drkahn to be ready to participate.

Tim Kaufman's journey is nothing short of remarkable. Diagnosed with Ehlers-Danlos Syndrome—an inherited condition affecting collagen that impacts the heart, joints, and tendons—Tim found himself in a dark place by 2011, struggling with food, alcohol, and painkiller addiction, compounded by morbid obesity.
His inspiring recovery through a plant-based diet led him to complete the Lake Placid Ironman in 2024 while sustaining an incredible 200 lb weight loss. Tim shares his transformative story in his book Escape. Learn more about his journey at fatmanrants.com.

This week, Dr. Kahn shares his curated list of the top advances in heart research from 2025. He highlights key insights and perspectives from Drs. Kim Williams and Noel Merz, along with important updates from the American Heart Association.
Dr. Kahn also reviews a newly published research paper on the 5-day Fasting Mimicking Diet (PROLON), including the first human evidence showing activation of autophagy. Learn what this could mean for metabolic and cardiovascular health. PROLON is available at prolonlife.com/drkahn.
Thanks to tokuhealth.com/KAHN20 and their nattokinase product, Flow, for supporting the show. 
Wishing everyone a healthy and happy holiday season and all the best in 2026.