Greg Katz, MD

The AHA Just Scared People Away From Melatonin Based on Garbage Data

If your guru takes this stuff seriously, you should find another guru

17 mins ago • 

Greg Katz, MD

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Your doctor is looking at the wrong ratio

Your doctor is probably looking at the wrong ratio on your cholesterol panel.

Nov 7 • 

Greg Katz, MD

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October 2025

Using AI to train doctors

A few weeks ago I wrote about AI in medicine. Today I want to talk about AI in medical education.

Oct 31 • 

Greg Katz, MD

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The Protein Wars: Why Everyone Is Wrong (and Right)

Are you confused about how much protein you should be eating?

Oct 24 • 

Greg Katz, MD

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The AI Revolution in Medicine Has an Evidence Problem

Evidence-based medicine with evidence-optional tools

Oct 17 • 

Greg Katz, MD

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The Tylenol-Autism Controversy: Sound and Fury, Signifying Nothing

This doesn't change our management, so why are we talking about it?

Oct 10 • 

Greg Katz, MD

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Rethinking Osteoporosis: Why "Bone Attacks" Should the Same Urgency as Heart Attacks

Ask any doctor, and they’ll tell you that a hip fracture from osteoporosis can be a death sentence.

Oct 3 • 

Greg Katz, MD

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September 2025

How Long Do You Really Need Blood Thinners After a Heart Attack?

Today is another look at some new trials presented at the recent European Society of Cardiology Meeting.

Sep 19 • 

Greg Katz, MD

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The Beta Blocker Paradigm Shift

What Three Major Trials Tell Us

Sep 12 • 

Greg Katz, MD

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Why a trial on sudden cardiac death convinced me to eat more vegetables

The European Society of Cardiology just wrapped up it’s annual meeting.

Sep 5 • 

Greg Katz, MD

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August 2025

Why your doctor keeps interrupting you (and how to fix it)

Understanding this will transform your medical appointments

Aug 29 • 

Greg Katz, MD

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The limits of "there's a study about that"

A 68-year-old man with heart disease sits in the doctor's office.

Aug 22 • 

Greg Katz, MD

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