BITESIZE: Ketogenic Diet Dangerous? Breaking Down the New Study

A new study claims ketogenic diets cause liver damage and early death. Here’s what you need to know.

A 2025 mouse study recently made headlines, warning that ketogenic diets may lead to fatty liver, high triglycerides, and a shortened lifespan.

But here’s the catch:

These findings were in genetically altered mice fed a 90% fat diet, filled with highly synthetic components, and they contradict what human trials have shown again and again.

In real people, ketogenic diets have consistently been linked to:

✅ Lower liver fat and improved liver enzymes

✅ Reduced triglycerides

✅ Improved insulin sensitivity and A1c

✅ Medication reduction or even remission in type 2 diabetes

So why the disconnect?

In this video, Dr. Bret Scher breaks it down:

What the mouse study really showed (and what it didn’t)Key biological differences between mice and humansWhy human evidence still supports a well-formulated ketogenic diet’s safety and benefitsWhat to look for when evaluating nutrition headlines