Greg Katz, MD

Your VO2 max protocol is based on a house of cards

Mediocre evidence meets extreme confidence

Feb 6 • Greg Katz, MD

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January 2026

I’m Having Trouble Caring About the New Dietary Guidelines

I used to find nutrition science fascinating.

Jan 30 • Greg Katz, MD

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Should your carotid blockage be fixed?

I saw a patient recently who was coming in for a second opinion about whether they should get a stent in their carotid artery.

Jan 16 • Greg Katz, MD

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High-Risk, No Heart Attack - Now What?

One of the most common questions that I face in clinic: what should we do for a patient who has elevated risk for a heart attack or stroke but hasn’t…

Jan 9 • Greg Katz, MD

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Should you be taking aspirin to prevent a heart attack?

In light of aspirin making news for heart disease prevention, I wanted to share a podcast I worked on a few years ago on aspirin for preventing a first…

Jan 5 • Greg Katz, MD

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High triglycerides are a call to action

I recently did a podcast with Core IM on severe hypertriglyceridemia, and I wanted to share it because the core message is something I wish more…

Jan 2 • Greg Katz, MD

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December 2025

The Problem With Asking 'How Long Should Antibiotics Last?

I wanted to take today’s newsletter to share a new Beyond Journal Club podcast episode looking at a trial asking about the length of time someone should…

Dec 12, 2025 • Greg Katz, MD

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Reflections on the match

This week is the annual fellowship match, where internal medicine residents across the country learn where they’re going to do their oncology…

Dec 5, 2025 • Greg Katz, MD

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November 2025

Are you missing Peter Attia's point?

A repost for Thanksgiving Hiatus

Nov 28, 2025 • Greg Katz, MD

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Medicare Will Pay for AI Heart Scans That Haven't Proven They Work

Medicare just announced they’ll reimburse for AI-enhanced cardiac CT interpretation, which means CMS will reimburse companies like HeartFlow, Euclid…

Nov 21, 2025 • Greg Katz, MD

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

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

Nov 14, 2025 • 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, 2025 • Greg Katz, MD

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