Nick Norwitz MD PhD (@nicknorwitz)

Can Nattokinase Reverse Atherosclerosis? 🫀❤️‍🔥 (link in 6/6) 1/6) When it comes to cardiovascular health, few supplements have sparked as much public interest — or confusion — as #nattokinase. This enzyme, derived from Japanese fermented soybeans, has achieved near-legendary status for its potenti...

Microplastics can increase your risk of heart attack, stroke, or death by 350%. (Yes, that's a heart) 1/7) This isn’t a theoretical projection. This is the conclusion of a landmark study published in the New England Journal of Medicine. For decades, we have categorized plastic pollution as an "env...

Power of a Post-Prandial Walk: How it Works (Read on👇) Go for a walk after a meal. This activates large muscle groups—like your glutes and quads—literally increases glucose receptors (GLUT4) on your muscles through an insulin-independent pathway. In effect, the muscle contraction forces the GLUT ...

1/6) How Fructose Hijacks the Liver to Fuel Cancer (Link in 6/6) Quote: “In all cases, diets supplemented with high-fructose corn syrup resulted in faster tumor growth compared with control diets.” This includes melanoma, breast, and cervical cancers. What’s going on is ‘sneakier’ than you might t...

The Transgenerational Legacy of a Workout - From Squats to Sperm (Link at the end) 1/9) What if your workout could rewire your sperm to change the metabolic destiny of your children? A new paper in Cell Metabolism provides a stunning look at the mechanism. It shows how your time in the gym can di...

The "Rediscovered" Amino Acid That Could Save Muscles from Aging (New Study)🔗 at the end💪 1/5) “Aging isn’t for the weak.” You’ve either heard that before—or lived it—and it’s true. But here’s the truth: that decline is not inevitable. The fact that humans tend to become metabolically disadvantage...

The Molecular Choreography of Exercise: One of the Most Beautiful Studies Ever Written 💪🫀😍 1/10) After the excellent response to the Four Causes of Diabetes Interview, I’m thrilled that Professor Michael Snyder @TheSnyderLab @Stanford will be joining me for a series of interview on Aging, Multi-Omi...

Midlife Metabolism: Why You Gain Visceral Fat with Age and What to Do About It (🔗 in 5/5) 1/5) A new 2025 paper was just published in Science that shines a light on why people gain visceral fat #VAT when they start to approach middle age. Visceral fat sits around your internal organs, and beyond p...

1/4) A few months ago, in March 2025, a randomized controlled trial was published that claimed to debunk the Carbohydrate Insulin Model (CIM). In this study, 120 lean young adults (mean BMI 21-22) were assigned to one of three meals that varied in glycemic index (GI). All diets were 60% of calories...