Knife Down
"Knife Down" is what a surgeon says in the OR when she puts her scalpel down so no one gets hurt — and it’s the mission here: put the knife down, long before anyone needs to use it.
Knife Down is a podcast about how to actually invest in your health so you can live longer, stronger, and with less time in doctors’ offices. The core focus is the world’s leading cause of death—cardiovascular disease—and what to do about it before it shows up as a catastrophe.
Hosted by a vascular surgeon on a mission to put herself out of business, the show translates cutting-edge science on prevention, metabolic health, and longevity into real-world strategies you can use in clinic or at your kitchen table. Expect evidence, nuance, and zero wellness hype—plus the occasional dark joke about the state of modern medicine.
Knife Down
Latest Episodes
Can You Take Too Much Vitamin K2? Vascular Surgeon Explains
Can you take too much vitamin K2? In this video, I answer the most common follow-up questions about vitamin K2, including dose, safety, testing, interactions, and whether more is actually better.Here's the original video on the K2 clini...
Vitamin K Slows Coronary Calcium: NEW Netherlands Study
Can vitamin K2 slow coronary artery calcium? A new JAMA Cardiology randomized trial found that MK-7 may reduce CAC progression over 2 years — but the real story is more complicated.TL;DR: In this randomized trial, people with symptomati...
Surgery for Alzheimer's...Is It Real? (and other questions)
In this Q&A session, Dr. Lily Johnston dives into complex viewer questions regarding cardiovascular health and emerging medical research. She covers the impact of hormone therapies on LP(a), the nuances of managing cholesterol after a heart...
99% of heart attacks had a warning. Your doctor called it "normal."
Can you have a heart attack with “normal” labs and no warning signs? Or are we missing the warning signs because our thresholds are too late and our prevention model is too reactive?Today I react to a fascinating video from
Can THIS Supplement Prevent Heart Disease? Surgeon Reacts to Dr Boz
Are omega-3s really the #1 supplement for heart disease prevention? In this reaction to Dr. Boz, I break down the nuance: atrial fibrillation risk, rancid oils, DHA vs EPA, heavy metal testing, delivery forms, omega level testing, and why small...